  Usefull Info....

 Drive size can be calculated by using the following formula... (((<heads>*<cylinders>)*512)*<sectors>) = size in bytes
  Example.. Let's take a Seagate ST-225 hard drive and figure how big it really is...
            The ST-225 has 4 heads and 615 cylinders so if we connect it to a standard MFM controller,then we figure...

                         (((4*615)*512)*17) = 21,411,840 or 21.4 meg

            But what if we want to put a new Perstor controller in to increase the drive size, and display megs not bytes.

                             ((((4*615)*512)*31)/1000 = 39 meg

 Sector list
  MFM  = 17              This a list of sectors per track available using the different controllers but there are
  RLL  = 26              exceptions, such as the Konan controllers offer the user 18 sectors per track giving approx.
  ARLL = 31              500k more disk space per 10 meg of hard drive space. I have noticed that both EDSI & SCSI
  EDSI = 17 to 72        drives & controllers vary from 17 to over 51 sectors per track depending on the drive and
  SCSI = 17 to 72        who makes it.  It appears to me that the better the drive the more sectors you can get on it.


                                       **          Write    Reduce  Step  Access  Recom'd          Controller
 Manufacturer     Model           Hds  Pl Cylndrs  PreComp  Write   Rate  Time    Sec/trk  Dimsn   Type*/Comment
 ===============  =============== ==== == =======  =======  ======  ====  ======  =======  ======  ================================
 ALPS ELECTRIC    DRND-10A          2   1    615      616     616           60.0     17     3.5    M /
                  DRND-20A          4   2    615      616     616           60.0     17     3.5    M /
                  DRPO-20D          2   1    615      616     616           60.0     26     3.5    R /
                  RPO-20A           2   1    615      616     616           60.0     26     3.5    R /
 AMPEX            PYXIS-13          4   2    320      132     132           90.0     17     5.25   M /
                  PYXIS-20          6   3    320      132     132           90.0     17     5.25   M /
                  PYXIS-27          8   4    320      132     132           90.0     17     5.25   M /
                  PYXIS-7           2   1    320      132     132           90.0     17     5.25   M /
 AREAL            BP100             2   1   1720                            29.0     60     2.5    ? / New Glass media
                  BP200             2   1   3400                            29.0     60     2.5    ? / New Glass media
                  MD2050            2   1    819                            29.0     60     2.5    ? / New Glass media
                  MD2100            2   1   1638                            29.0     60     2.5    ? / New Glass media
 ATASI            3020              3   2    645      320    none     7      0.0     17     5.25   M /
                  3033              5   3    645      320    none     7      0.0     17     5.25   M /
                  3046              7   4    645      320    none     7      0.0     17     5.25   M /
                  3051              7   4    704      350    none     7      0.0     17     5.25   M /
                  3051+             7   4    733      368                    0.0     17     5.25   M /
                  3053              7   4    733     365     none    7       0.0     17     5.25   M /
                  3058              8   4   1024     none    none     7      0.0     17     5.25   M /
                  3075              8   4   1024     1024    none     7      0.0     17     5.25   M /
                  3085              8   4   1024      512    none     7      0.0     17     5.25   M /
 BASF             6185              6   3    440      220     220            0.0     17     5.25   M /
                  6186              4   2    440      220     220            0.0     17     5.25   M /
                  6187              2   1    440      220     220            0.0     17     5.25   M /
                  6188-R1           2   1    612                             0.0     17     5.25   M /
                  6188-R3           4   2    612                             0.0     17     5.25   M /
 BRAND TECH       BT8085            8   4   1024                             0.0     17            ? /
                  BT8128            8   4   1024                             0.0     31            ? /
                  BT8170            8   4   1024                             0.0     17            ? /
                  BT9124E           5   3   1166                            16.5     36     3.5    E / ESDI
                  BT9170E           7   4   1072                            16.5     41     3.5    E /
                  BT9220E           9   5   1208                            16.5     36     3.5    E /
 BULL             D 530             3   2    987     none    none            0.0     17     5.25   M /
                  D 550             5   3    987     none    none            0.0     17     5.25   M /
                  D 570             7   4    987     none    none            0.0     17     5.25   M /
                  D 585             7   4   1166     none                    0.0     17     5.25   M /
 C. ITOH          YD-3530           5   3    731      732                    0.0     17     5.25   M /
                  YD-3540           7   4    731      732                   26.0     17     5.25   M /
                  YD-3042           4   2    788      789                   26.0     31     5.25   S / SCSI
                  YD-3082           8   4    788      789                   26.0     26     5.25   S / SCSI
 CARDIFF          F-3053            5   3   1024     none    none           20.0     17     3.5    M /
                  F-3080            5   3   1024     none    none           20.0     26     3.5    S / SCSI/ECSI
                  F-3127            5   3   1024     none    none           20.0     35     3.5    S / SCSI/ECSI
 CDC              94156-48          5   3    925     none    none     7     28.0            5.25   E / ESDI
                  94156-67          6   3    925     none    none     7     28.0            5.25   E / ESDI
                  94156-86          9   5    925     none    none     7     28.0            5.25   E / ESDI
                  94166-101         5   3    969     none    none     7     16.5            5.25   E / ESDI
                  94166-141         7   4    969     none    none     7     16.5            5.25   E / ESDI
                  94166-182         9   5    969     none    none     7     16.5            5.25   E / ESDI
                  94186-383        13   7   1412     none    none     7     19.5            5.25   E / ESDI
                  94186-383-H      15   8   1224     none    none     7     14.5            5.25   E / ESDI
                  94186-442        15   8   1412     none    none     7     16.0            5.25   E / ESDI
 ** Number of Platters                                * Controller Type - M = MFM  R = RLL  E = EDSI  S = SCSI  O = Other  ? = N/A


                                                         South Texas BBS I
                                                            HD Listing
                                                           713-894-5636

                                       **          Write    Reduce  Step  Access  Recom'd          Controller
 Manufacturer     Model           Hds  Pl Cylndrs  PreComp  Write   Rate  Time    Sec/trk  Dimsn   Type*/Comment
 ===============  =============== ==== == =======  =======  ======  ====  ======  =======  ======  ================================
 CDC              94216-106         5   3   1024     none    none     7     16.5            5.25   E / ESDI
                  94354-126         7   4   1072     none    none            0.0     29            E / ESDI
                  94354-160         9   5   1072     none    none            0.0     29            E / ESDI
                  94354-200         9   5   5072     none    none            0.0     36            E / ESDI
                  94354-230         9   5   1272     none    none            0.0     36            E / ESDI
                  94356-111         5   3   1072     none    none                    34     3.5    E / ESDI
                  94356-155         7   4   1072     none    none           15.0     34     3.5    E / ESDI
                  94356-200         9   5   1272     none    none     7     18.0     34     3.5    E / ESDI
                  WREN III          5   3    969                            18.0            5.25   E / ESDI
                  94155-120         8   4    960        0    none     7     28.0     17     5.25   M / FH
                  94155-120P        8   4    960        0    none     7     28.0     17     5.25   M / FH
                  94155-135P        9   5    960        0    none     7     28.0     17     5.25   M / FH
                  94155-19          3   2    697      128    none     7      0.0                   M /
                  94155-21          3   2    697      128    none     7     28.0     17     5.25   M / FH
                  94155-25          4   2    615      128                    0.0     17            M /
                  94155-25AT        4   2    697      128    none     7      0.0                   M /
                  94155-28          4   2    697      128    none     7      0.0     17            M /
                  94155-36          5   3    697      128    none     7     28.0     17     5.25   M / FH
                  94155-38          5   3    733      128    none     7      0.0     17            M /
                  94155-48          5   3    925      128    none     7     28.0     17     5.25   M / FH
                  94155-57          6   3    925      128    none     7     28.0     17     5.25   M / FH
                  94155-67          7   4    925      128    none     7     28.0     17     5.25   M / FH
                  94155-77          8   4    925      128    none     7      0.0     17            M /
                  94155-85          8   4   1024        0    none     7     28.0     17     5.25   M / FH
                  94155-85P         8   4   1024        0    none     7     28.0     17     5.25   M / FH
                  94155-86          9   5    925      128    none     7     28.0     17     5.25   M / FH
                  94155-96          9   5   1024        0    none     7     28.0     17     5.25   M / FH
                  94155-96P         9   5   1024        0    none     7     28.0     17     5.25   M / FH
                  94156-72          9   5    925      128                    0.0                   M /
                  94204-65          8   4    941        0    none     7     28.0     17     5.25   M / FH
                  94204-71          8   4   1024        0    none     7     28.0     17     5.25   M / FH
                  94205-30          3   2    989      128                    0.0                   M /
                  94205-51          5   3    989      128    none     7     32.0     17     5.25   M / HH
                  94295-51          5   3    989      990    none     7     28.0     17            M /
                  94335-100         9   5   1072     none    none     7     25.0     17     3.5    M /
                  94335-55          5   3   1072     none    none     7     25.0     17     3.5    M /
                  94355-100         9   5   1072     none    none     7     16.5     17     3.5    M /
                  94355-55          5   3   1072     none    none     7     16.5     17     3.5    M /
                  BJ7D5A            5   3    734              128                    17            M /     77731613
                  BJ7D5A            5   3    671              128            0.0     17     5.25   M / FH  77731608 5.25
                  BJ7D5A            4   2    671              128            0.0     17     5.25   M / FH  77731614 5.25
                  9720-1230        15   8   1635                            16.0                   O / 8" Drive 1056 meg  SABRE
                  9720-368         10   6   1217                            18.0                   O / 8" Drive 316 meg   SABRE
                  9720-500         10   6   1217                            18.0                   O / 8" Drive 427 meg   SABRE
                  9720-736         15   8   1635                            16.0                   O / 8" Drive 637 meg   SABRE
                  9720-850         15   8   1381                            16.0                   O / 8" Drive 727 meg   SABRE
                  SABRE 1230       15   8   1635                            16.0                   O / 8" Drive 1236 meg
                  SABRE 368        10   6   1217                            18.0                   O / 8" Drive 368 meg
                  SABRE 500        10   6   1217                            18.0                   O / 8" Drive 500 meg
                  SABRE 736        15   8   1635                            16.0                   O / 8" Drive 741 meg
                  SABRE 850        15   8   1381                            16.0                   O / 8" Drive 851 meg
                  94155-135         9   5    960     none    none     7     28.0     26     5.25   R / RLL HH
 ** Number of Platters                                * Controller Type - M = MFM  R = RLL  E = EDSI  S = SCSI  O = Other  ? = N/A


                                                         South Texas BBS I
                                                            HD Listing
                                                           713-894-5636

                                       **          Write    Reduce  Step  Access  Recom'd          Controller
 Manufacturer     Model           Hds  Pl Cylndrs  PreComp  Write   Rate  Time    Sec/trk  Dimsn   Type*/Comment
 ===============  =============== ==== == =======  =======  ======  ====  ======  =======  ======  ================================
 CDC              94205-77          5   3    989     none    none     7     28.0     26     5.25   R / RLL HH
                  94335-150         9   5   1072     none    none     7     25.0     26     3.5    R / RLL
                  94335-150         9   5   1072     none    none     7     15.0     28     3.5    R / RLL
                  94161-121         0        969     none    none     7     16.5            5.25   S / SCSI
                  94161-86          0        969     none    none     7     16.5            5.25   S / SCSI
                  94171-300         9   5   1365     none    none     7     16.5            5.25   S / SCSI
                  94171-344         9   5   1549     none    none     7     17.5            5.25   S / SCSI
                  94181-385H       15   8                                   10.7            5.25   S / SCSI RUNNER  FH
                  94181-574        15   8   1549     none    none     7     16.0            5.25   S / SCSIFH
                  94211-106         5   3   1024                            18.0            5.25   S / SCSI WREN-3  HH
                  94211-209         5   3   1547                            18.0            5.25   S / SCSI WREN V  HH
                  94211-91          5   3    969     none    none     7     16.5     36     5.25   S / SCSIFH
                  94221-190         5   3   1547     none    none     7      8.3     36     5.25   S / SCSIHH
                  94351-128         7   4   1068                                     36     3.5    S / SCSI SWIFT ASYNC
                  94351-134         7   4                                   15.0            3.5    S / SCSI SWIFT
                  94351-160         9   5   1068                                     36     3.5    S / SCSI SWIFT ASYNC
                  94351-172         9   5      0     none    none     7     16.5            3.5    S / SCSI
                  94351-200         9   5   1068                                     36     3.5    S / SCSI SWIFT ASYNC
                  94351-200S        9   5   1068                                     36     3.5    S / SCSI SWIFT SYNC
                  94351-230S        9   5   1272                                     36     3.5    S / SCSI SWIFT SYNC
 CENTURY DATA     CAST-10203E       3   2   1050     1051                   28.0     35     5.25   E /  FH    55
                  CAST-10304        4   2   1050     1051                   28.0     35     5.25   E /  FH    75
                  CAST-10305        5   3   1050     1051                   28.0     35     5.25   E /  FH    94
                  CAST-14404        4   2   1590     1591                   25.0     35     5.25   E /  HH    114
                  CAST-14405        5   3   1590     1591                   25.0     35     5.25   E /  HH    140
                  CAST-14406        6   3   1590     1591                   25.0     35     5.25   E /  HH    170
                  CAST-24509        9   5   1599     1600                   18.0     35     5.25   E /  FH    258
                  CAST-24611       11   6   1599     1600                   18.0     35     5.25   E /  FH    315
                  CAST-24713       13   7   1599     1600                   18.0     35     5.25   E /  FH    372
                  CAST-10203S       3   2   1050     1051                   28.0     35     5.25   S /  FH    55
                  CAST-10304S       4   2   1050     1051                   28.0     35     5.25   S /  FH    75
                  CAST-10305S       5   3   1050     1051                   28.0     35     5.25   S /  FH    94
                  CAST-14404S       4   2   1590     1591                   25.0     35     5.25   S /  HH    114
                  CAST-14405S       5   3   1590     1591                   25.0     35     5.25   S /  HH    140
                  CAST-14406S       6   3   1590     1591                   25.0     35     5.25   S /  HH    170
                  CAST-24509S       9   5   1599     1600                   18.0     35     5.25   S /  FH    258
                  CAST-24611S      11   6   1599     1600                   18.0     35     5.25   S /  FH    315
                  CAST-24713S      13   7   1599     1600                   18.0     35     5.25   S /  FH    372
 CMI              CM 3206           4   2    306                             0.0                   M /
                  CM 3426           4   2    612      256    none            0.0     17            M /
                  CM 5205           2   1    256      128     128     7      0.0     17            M /
                  CM 5206           2   1    306      128    none     7      0.0     17            M /
                  CM 5410           4   2    256      128     128     7      0.0     17            M /
                  CM 5412           4   2    306      128    none     7      0.0     17            M /
                  CM 5616           6   3    256      128     128     7      0.0     17            M /
                  CM 5619           6   3    306      128    none     7      0.0     17            M /
                  CM 5826           8   4    306                             0.0                   M /
                  CM 6213           2   1    640      256    none     7      0.0     17            M /
                  CM 6426           4   2    615      256    none     7      0.0     17            M /
                  CM 6426S          4   2    640      300                    0.0                   M /
                  CM 6626           4   2    640      256    none     7      0.0     17            M /
                  CM 6640           6   3    640      256    none     7      0.0     17            M /
 ** Number of Platters                                * Controller Type - M = MFM  R = RLL  E = EDSI  S = SCSI  O = Other  ? = N/A


                                                         South Texas BBS I
                                                            HD Listing
                                                           713-894-5636

                                       **          Write    Reduce  Step  Access  Recom'd          Controller
 Manufacturer     Model           Hds  Pl Cylndrs  PreComp  Write   Rate  Time    Sec/trk  Dimsn   Type*/Comment
 ===============  =============== ==== == =======  =======  ======  ====  ======  =======  ======  ================================
 CMI              CM 7660           6   3    960      512    none     7      0.0     17            M /
                  CM 7880           8   4    960      512    none     7      0.0     17            M /
 COGITO           CG 906            2   1    306      128     128            0.0                   M /
                  CG 912            4   2    306      128     128            0.0                   M /
                  CG 925            4   2    612      128     128            0.0                   M /
                  PT 912            2   1    612      307     307            0.0                   M /
                  PT 925            4   2    612      307     307            0.0                   M /
 CONNER           CP-3022           2   1    636                            26.0     27     3.5    R / AT-BUS 16-BIT
                  CP-3024           2   1    636                            35.4     26     3.5    R /
                  CP-3044           2   1   1047                            33.4     26     3.5    R /
                  CP-3102A          8   4    776                            26.0     25     3.5    R / AT-BUS 16-BIT
                  CP-3102B          8   4    772                            26.0     25     3.5    R / AT-BUS 16-BIT
                  CP-3104           8   4    776                            33.4     26     3.5    R /
                  CP-3204F          8   4   1366                            24.6     26     3.5    R /
                  CP-342            4   2    805                            26.0     29     3.5    R / AT-BUS 16-BIT
                  CP-344            4   2    805                            37.3     26     3.5    R /
                  CP-3020           2   1    636                            35.4            3.5    S /
                  CP-3040           2   1   1047                            33.4            3.5    S /
                  CP-3100           8   4    776                            29.0     29     3.5    S / SCSI
                  CP-3200F          8   4   1366                            24.6            3.5    S /
                  CP-340            4   2    788                            29.0     29     3.5    S / SCSI
                  CP-340            4   2    805                            37.3            3.5    S /
 CONNER HOPI      CP-30104          4   2   1522                            27.8     26     3.5    R /
                  CP-30100          4   2   1522                            27.8            3.5    S /
 CONNER KATO      CP-2024           2   1    653                            48.7     26     3.5    R /
 CONNER STUBBY    CP-4024           2   1    627                            39.3     26     3.5    R /
                  CP-4044           2   1   1104                            60.3     26     3.5    R /
 CORE INTNL       HC 150            9   5    968                            16.0     35     5.25   E /  FH
                  HC 260           12   6   1212                            25.0     35     5.25   E /  FH
                  HC 310           15   8   1582                            16.0     35     5.25   E /  FH
                  HC 40             4   2    564                            10.0     35     5.25   E /  HH
                  HC 90             5   3    969                            16.0     35     5.25   E /  HH
                  AT 30             5   3    733                            21.0     17     5.25   M /  FH
                  AT 32             5   3    733                            21.0     17     5.25   M /  HH
                  AT 40             5   3    924                            26.0     17     5.25   M /  FH
                  AT 63             5   3    988                            26.0     26     5.25   M /  FH
                  AT 72             9   5    924                            26.0     17     5.25   M /  FH
                  OPTIMA 30         5   3    733                            21.0     17     5.25   M /  HH
                  OPTIMA 40         5   3    963                            26.0     17     5.25   M /  HH
                  OPTIMA 70         9   5    918                            26.0     17     5.25   M /  FH
                  AT 30             5   3    733                            21.0     26     5.25   R /  FH
                  AT 32             5   3    733                            21.0     26     5.25   R /  HH
                  AT 40             5   3    924                            26.0     26     5.25   R /  FH
                  AT 63             5   3    988                            26.0     26     5.25   R /  FH
                  AT 72             9   5    924                            26.0     26     5.25   R /  FH
                  OPTIMA 30         5   3    733                            21.0     26     5.25   R /  HH
                  OPTIMA 40         5   3    963                            26.0     26     5.25   R /  HH
                  OPTIMA 70         9   5    918                            26.0     26     5.25   R /  FH
 CYNTHIA          D520              4   2    640     none    none     0      0.0                   M /
 DISCTRON         D-503             2   1    153        -                            17            M /
                  D-504             2   1    215        -                            17            M /
                  D-506             4   2    153        -                            17            M /
 ** Number of Platters                                * Controller Type - M = MFM  R = RLL  E = EDSI  S = SCSI  O = Other  ? = N/A


                                                         South Texas BBS I
                                                            HD Listing
                                                           713-894-5636

                                       **          Write    Reduce  Step  Access  Recom'd          Controller
 Manufacturer     Model           Hds  Pl Cylndrs  PreComp  Write   Rate  Time    Sec/trk  Dimsn   Type*/Comment
 ===============  =============== ==== == =======  =======  ======  ====  ======  =======  ======  ================================
 DISCTRON         D-507             2   1    306      128                            17            M /
                  D-509             4   2    215      128                            17            M /
                  D-512             8   4    153        -                            17            M /
                  D-513             6   3    215      128                            17            M /
                  D-514             4   2    306      128                            17            M /
                  D-518             8   4    215      128                            17            M /
                  D-519             6   3    306      128                            17            M /
                  D-526             8   4    306      128     128     0              17            M /
 DMA              360/306           2   1    612      400    none     7      0.0     17            M /  REMOVABLE
 DTM              853               8   4    640                             0.0                   M /
                  885               8   4   1024                             0.0                   M /
                  885               5   3   1024                             0.0                   M /
 ELCOH            DISCACHE10        4   2    320                                     17            M /
                  DISCACHE20        8   4    320                                     17            M /
 EPSON            HD 850            4   2    306                             0.0     17            M /
                  HD 860            4   2    612                             0.0     17            M /
 FUJI             FK301             4   2    306      128     307                    17            M /
                  FK302-13          2   1    612      307     613                    17            M /
                  FK302-26          4   2    612      307     613                    17            M /
                  FK302-39          6   3    612      307     613                    17            M /
                  FK303-52          8   4    615      616       -           50.0     17     3.5    M /
                  FK305-26          4   2    615      616       -           80.0     17     3.5    M /
                  FK305-39          6   3    615      616       -           80.0     17     3.5    M /
                  FK309-26          4   2    615      616       -           80.0     17     3.5    M /
                  FK305-39R         4   2    615                            50.0     26     3.5    R /    32
                  FK305-58R         6   3    615                            50.0     26     3.5    R /    49
                  FK309-39R         4   2    615                             0.0     26            R /    32
                  FK308S-39R        4   2    615                            50.0            3.5    S /    32
                  FK308S-58R        6   3    615                            50.0            3.5    S /    45
                  FK309S-50R        4   2    615                            50.0            3.5    S /    41
 FUJITSU          M 2227D           0          0                             0.0                   ? /
                  2244E             5   3    823                            25.0     35     5.25   E /  FH
                  2245E             7   4    823                            25.0     35     5.25   E /  FH
                  M 2246E          10   6    823                            25.0     35     5.25   E / ESDI
                  M 2247E           7   4   1243                            25.0     35     5.25   E / ESDI
                  M 2248E          11   6   1243                            25.0     35     5.25   E / ESDI
                  M 2249           15   8   1243                            18.0     35     5.25   E /  ESDI or SCSI
                  M 2249E          15   8   1243                            25.0     35     5.25   E / ESDI
                  2230 AS           2   1    320                                     17            M /
                  2233 AS           4   2    320                                     17            M /
                  2234 AS           6   3    320                                     17            M /
                  2235 AS           8   4    320                                     17            M /
                  2241 AS           4   2    754                                     17            M /
                  M 2226D2          6   3    615                            35.0     17     3.5    M /
                  M 2227D2          8   4    615                            35.0     17     3.5    M /
                  M 2230AS          2   1    306                             0.0     17            M /
                  M 2230AT          2   1    306                                     17            M /
                  M 2231            2   1    306                             0.0                   M /
                  M 2233AS          4   2    306                             0.0                   M /
                  M 2233AT          4   2    306                                     17            M /
                  M 2234AS          6   3    306                             0.0                   M /
                  M 2235AS          8   4    306                             0.0                   M /
 ** Number of Platters                                * Controller Type - M = MFM  R = RLL  E = EDSI  S = SCSI  O = Other  ? = N/A


                                                         South Texas BBS I
                                                            HD Listing
                                                           713-894-5636

                                       **          Write    Reduce  Step  Access  Recom'd          Controller
 Manufacturer     Model           Hds  Pl Cylndrs  PreComp  Write   Rate  Time    Sec/trk  Dimsn   Type*/Comment
 ===============  =============== ==== == =======  =======  ======  ====  ======  =======  ======  ================================
 FUJITSU          M 2241AS          3   2    754      375                    0.0                   M /
                  M 2242AS          7   4    754      375                    0.0                   M /
                  M 2242AS2         7   4    754                            30.0     17     5.25   M /
                  M 2243AS         11   6    754      375                    0.0                   M /
                  M 2243AS2        11   6    754                            30.0     17     5.25   M /
                  M 2243T           7   4   1186                            25.0     17     5.25   M /
                  M 2225D           4   2    615                            35.0     26     3.5    R /
                  M 2225DR          4   2    615                            35.0     26     3.5    R /
                  M 2226DR          6   3    615                            35.0     26     3.5    R /
                  M 2227DR          8   4    615                            35.0     26     3.5    R /
                  M 2243R           7   4   1186                            25.0     26     5.25   R /
                  2244SA            5   3    823                            25.0     35            S /
                  M 2245SA          7   4    823                            25.0     35            S /
                  M 2246SA         10   6    823                            25.0     35     5.25   S /
                  M 2344KS         27        624                            16.0                   S /
 HITACHI          DK512-12          7   4    823                            23.0            5.25   E /  FH
                  DK512-17         10   5    823                            23.0            5.25   E /  FH
                  DK512-8           5   3    823                            23.0            5.25   E /  FH
                  DK514-38         14   8    903                            16.0     51     5.25   E /  FH
                  DK522-10          6   3    823                            25.0     36     5.25   E /  HH
                  DK 301-1          4   2    306                            85.0     17     3.5    M /
                  DK 301-2          6   3    306                            85.0     17     3.5    M /
                  DK 511-3          5   3    699      300                   30.0     17     5.25   M / FH
                  DK 511-5          7   4    699      300                   30.0     17     5.25   M / FH
                  DK 511-8         10   5    823      400                   23.0     17     5.25   M / FH
                  DK 521-5          6   3    823      400                   25.0     17     5.25   M / HH
                  DK512C-12         7   4    823                            23.0            5.25   S /  FH
                  DK512C-17        10   5    819                            23.0     35     5.25   S /  FH
                  DK512C-8          5   3    823                            23.0            5.25   S /  FH
                  DK522C-10         6   3    819                            25.0     35     5.25   S /  HH
 IMI              5006              2   1    306      214    none     0      0.0     17            M /
                  5012              4   2    306      214    none     0      0.0     17            M /
                  5018              6   3    306      214    none     0      0.0     17            M /
 IMPRIMIS         9415-519          3   2    697                                                   ? /
                  9415-536          5   3    697                                                   ? /
                  9415-538          5   3    733                                                   ? /
                  94155-120         8   4    960                                                   ? /
                  94155-120P        8   4    960                                                   ? /
                  94155-135         9   5    960                                                   ? /
                  94155-135P        9   5    960                                                   ? /
                  94155-48          5   3    925                                                   ? /
                  94155-56          9   5    925                                                   ? /
                  94155-57          6   3    925                                                   ? /
                  94155-67          7   4    925                                                   ? /
                  94155-77          8   4    925                                                   ? /
                  94155-85          8   4   1024                                                   ? /
                  94155-85P         8   4   1024                                                   ? /
                  94155-86          9   5    925                                                   ? /
                  94155-96          9   5   1024                                                   ? /
                  94155-96P         9   5   1024                                                   ? /
                  94156-48          5   3    925                                                   ? /
                  94156-67          7   4    925                                                   ? /
 ** Number of Platters                                * Controller Type - M = MFM  R = RLL  E = EDSI  S = SCSI  O = Other  ? = N/A


                                                         South Texas BBS I
                                                            HD Listing
                                                           713-894-5636

                                       **          Write    Reduce  Step  Access  Recom'd          Controller
 Manufacturer     Model           Hds  Pl Cylndrs  PreComp  Write   Rate  Time    Sec/trk  Dimsn   Type*/Comment
 ===============  =============== ==== == =======  =======  ======  ====  ======  =======  ======  ================================
 IMPRIMIS         94156-86          9   5    925                                                   ? /
                  94166-101         5   3    969                                                   ? /
                  94166-141         7   4    969                                                   ? /
                  94166-182         9   5    969                                                   ? /
                  94186-383        13   7   1412                                                   ? /
                  94186-383H       15   8   1224                                                   ? /
                  94186-442H       15   8   1412                                                   ? /
                  94196-766        15   8   1632                                                   ? /
                  94204-65          8   4    941                                                   ? /
                  94204-71          8   4   1024                                                   ? /
                  94205-51          5   3    989                                                   ? /
                  94205-77          5   3    989                                                   ? /
                  94216-106         5   3   1024                                                   ? /
                  94246-383         7   4   1747                                                   ? /
                  94354-135         9   5   1072                                                   ? /
                  94354-160         9   5   1072                                                   ? /
                  94354-172         9   5   1072                                                   ? /
                  94354-200         9   5   1072                                                   ? /
                  94355-100         9   5   1072                                                   ? /
                  94355-150         9   5   1072                                                   ? /
                  94356-111         5   3   1072                                                   ? /
                  94356-155         7   4   1072                                                   ? /
                  94356-200         9   5   1072                                                   ? /
 JCT              100               0          0                           110.0            5.25   M /  HH  5 MEG
                  1000              0          0                                                   M /  COMMODORE 5 MEG
                  1005              0          0                                                   M /  COMMODORE 7 MEG
                  1010              0          0                                                   M /  COMMODORE 14 MEG
                  105               0          0                           110.0            5.25   M /  HH 7
                  110               0          0                           110.0            5.25   M /  HH 14
                  120               0          0                           110.0            5.25   M /  HH 20
 KALOK            KL332             4   2    615                            48.0     30            E / 30
                  KL320             4   2    615                            48.0     17     3.5    M / 17
                  KL340             6   3    820                            33.3     17     3.5    M /
                  KL330             4   2    615                            40.0     26     3.5    R / 26
                  KL342             4   2    676                            38.9     26     3.5    R /
                  KL343             4   2    644                            25.0     30     3.5    R / 30
                  KL360             6   3    820                            33.3     17     3.5    R /
                  KL383             6   3    815                            33.8     26     3.5    R /
                  KL341             4   2    644                            30.0     30     3.5    S / 30
                  KL381             6   3    815                                            3.5    S /
 KYOCERA          KC20A             4   2    615                            62.0     17     3.5    M / 3.5"
                  KC20B             4   2    615                            65.0     17     3.5    M /
                  KC30A             4   2    615                            65.0     26     3.5    R /
                  KC30B             4   2    615                            62.0     26     3.5    R /
                  KC40GA            2   1   1075                            38.9     26     3.5    R /
 LAPINE           3062              4   2    306        0    none     7      0.0     17            M /
                  3512              4   2    306        0    none     7      0.0     17            M /
                  3522              4   2    306        0    none     7      0.0     17     3.5    M / 3.5"
                  LT 200            4   2    615        0    none     7     61.0     17     3.5    M /
                  LT 2000           4   2    615        0    none     7     61.0     17     3.5    M /
                  T-10              2   1    615        0    none     7      0.0     17     3.5    M / 3.5"
                  T-20              4   2    615        0    none     7     61.0     17     3.5    M / 3.5" 61.5ms  Model 3532
 ** Number of Platters                                * Controller Type - M = MFM  R = RLL  E = EDSI  S = SCSI  O = Other  ? = N/A


                                                         South Texas BBS I
                                                            HD Listing
                                                           713-894-5636

                                       **          Write    Reduce  Step  Access  Recom'd          Controller
 Manufacturer     Model           Hds  Pl Cylndrs  PreComp  Write   Rate  Time    Sec/trk  Dimsn   Type*/Comment
 ===============  =============== ==== == =======  =======  ======  ====  ======  =======  ======  ================================
 LAPINE           T-30              4   2    615        0    none     7     61.0     27     3.5    R / RLL  3.5" 61.5ms
                  T-300             4   2    615        0    none     7     61.0     27     3.5    R / RLL  3.5" 61.5ms
 MAXTOR           RXT-800S          2   1                                    0.0            5.25   ? / FH WORM OPTICAL
                  TAHITI            2   1                                    0.0            5.25   ? / FH ERASABLE OPTICAL 650meg
                  XT-4170E          7   4   1224                            14.0     35     5.25   E /  FH
                  XT-4175           7   4   1224                            27.0            5.25   E /  FH
                  XT-4280E         11   6   1224                            27.0     36     5.25   E /  FH
                  XT-4380E         15   8   1224                            16.0     36     5.25   E /
                  XT-8380E          8   4   1632                            14.5     54     5.25   E /  FH
                  XT-8760E         15   8   1632                            16.5     54     5.25   E /  FH
                  XT-1065           7   4    918     none    none     7     28.0     17     5.25   M /  FH
                  XT-1085           8   4   1024     none    none     7     28.0     17     5.25   M /  FH
                  XT-1105          11   6    918     none    none     7     27.0     17     5.25   M /  FH
                  XT-1140          15   8    918     none    none     7     27.0     17     5.25   M /  FH
                  XT-1140          15   8   1024     none    none     7     27.0     17     5.25   M /
                  XT-2085           7   4   1224     none                   30.0     17     5.25   M /  FH
                  XT-2085-          7   4   1024     none                    0.0                   M /
                  XT-2140          11   6   1224     none                   30.0     17     5.25   M /  FH
                  XT-2140-         11   6   1024     none                    0.0                   M /
                  XT-2190          15   8   1224     none    none     7     29.0     17     5.25   M /  FH
                  XT-2190-         15   8   1024     none                    0.0                   M /
                  XT-4380          15   8   1224                            16.0     17     5.25   M /  FH
                  XT-8760          15   8   1632                            16.5     17     5.25   M /  FH
                  XT-1120R          8   4   1024                            27.0     26     5.25   R /  FH
                  XT-1240R         15   8   1024                            27.0     26     5.25   R /  FH
                  LXT-100           8   4                                   27.0            3.5    S /
                  LXT-200           7   4                                   15.0            3.5    S /
                  XT-3170           9   5   1224                            30.0     48     5.25   S / SCSI interface
                  XT-3280          15   8   1224                            30.0                   S / SCSI interface
                  XT-3380          15   8      0                            27.0            5.25   S /  FH
                  XT-4170S          7   4   1224                            14.0     36     5.25   S /  FH
                  XT-4280S         11   6   1224                            27.0     36     5.25   S /  FH
                  XT-4380S         15   8   1224                            16.0     36     5.25   S /  FH
                  XT-8380S          8   4   1632                            14.5     54     5.25   S /  FH
                  XT-8760S         15   8   1632                            16.5     54     5.25   S /  FH
 MEMOREX          321               2   1    320      128    none     0      0.0     17            M /
                  322               4   2    320      128    none     0      0.0     17            M /
                  323               6   3    320      128    none     7      0.0     17            M /
                  324               8   4    320      128    none     7      0.0     17            M /
                  450               2   1    612      350    none     7      0.0     17            M /
                  512               3   2    961      480    none     7      0.0     17            M /
                  513               5   3    961      480    none     7      0.0     17            M /
                  514               6   3    961      480    none     7      0.0     17            M /
 MICRO STORAGE    MS 212            0          0                             0.0                   ? /
 MICROPOLIS       1352              2   1   1024                            23.0     36     5.25   E /
                  1352A             3   2   1024                            23.0     36     5.25   E /
                  1353              4   3   1024                            23.0     36     5.25   E /  FH
                  1353A             5   3   1024                            23.0     36     5.25   E /  FH
                  1354              6   3   1024                            31.3            5.25   E /
                  1354              6   4   1024                            23.0     36     5.25   E /  FH
                  1354A             7   4   1024                            23.0     36     5.25   E /  FH
                  1355              8   5   1024                            23.0     36     5.25   E / ESDI
 ** Number of Platters                                * Controller Type - M = MFM  R = RLL  E = EDSI  S = SCSI  O = Other  ? = N/A


                                                         South Texas BBS I
                                                            HD Listing
                                                           713-894-5636

                                       **          Write    Reduce  Step  Access  Recom'd          Controller
 Manufacturer     Model           Hds  Pl Cylndrs  PreComp  Write   Rate  Time    Sec/trk  Dimsn   Type*/Comment
 ===============  =============== ==== == =======  =======  ======  ====  ======  =======  ======  ================================
 MICROPOLIS       1516-10S         10   5   1840                            13.5     72     5.25   E /  FH
                  1517-13          13   7   1925                            14.0     72     5.25   E /  FH
                  1518-14          14   8   1925                            14.0     72     5.25   E /  FH
                  1518-15          15   8   1925                            14.0     72     5.25   E /  FH
                  1556-11          11   6   1224                            18.0     36     5.25   E /  FH
                  1557-12          12   7   1224                            18.0     36     5.25   E /  FH
                  1557-13          13   7   1224                            18.0     36     5.25   E /  FH
                  1557-14          14       1224                            18.0     36     5.25   E /  FH
                  1557-15          15       1224                            18.0     36     5.25   E /  FH
                  1558-14          14   7   1224                            26.3            5.25   E /
                  1558-15          15   8   1224                            26.3            5.25   E /
                  1566-11          11   6   1632                            16.0     54     5.25   E /  FH
                  1567-12          12       1632                            16.0     54     5.25   E /  FH
                  1567-13          13   7   1632                            16.0     54     5.25   E /  FH
                  1568-14          14   8   1632                            16.0     54     5.25   E /  FH
                  1568-15          15   8   1632                            16.0     54     5.25   E /  FH
                  1653-4            4   2   1249                            24.3            5.25   E /
                  1653-4            4   3   1249                            16.0     36     5.25   E /  HH
                  1653-5            4   3   1249                            24.3            5.25   E /
                  1653-5            5   3   1249                            16.0     36     5.25   E /  HH
                  1654-6            6   4   1249                            16.0     36     5.25   E /  HH
                  1654-6            6   3   1249                            24.3            5.25   E /
                  1654-7            7   4   1249                            16.0     36     5.25   E /  FH
                  1663-4            4   3   1781                            14.0     54     5.25   E /  HH
                  1663-5            5   3   1781                            14.0     54     5.25   E /  HH
                  1664-6            6   4   1781                            14.0     54     5.25   E /  HH
                  1664-7            7   4   1781                            14.0     54     5.25   E /  FH
                  1743-5            5       1140                            15.0     48     3.5    E /     28-48 SPT
                  1744-6            6       1140                            15.0     48     3.5    E /     28-48 SPT
                  1744-7            7       1140                            15.0     48     3.5    E /     28-48 SPT
                  1745-8            8       1140                            15.0     48     3.5    E /     28-48 SPT
                  1745-9            9       1140                            15.0     48     3.5    E /     28-48 SPT
                  1302              3        830      400                    0.0     17     5.25   M /  FH
                  1303              5        830      400    none     7      0.0     17     5.25   M /  FH
                  1304              6        830      400    none     7      0.0     17     5.25   M /  FH
                  1323              4   3   1024     none    none     7     28.0     17     5.25   M /  FH
                  1324              6   4   1024     none    none     7     28.0     17     5.25   M /  FH
                  1325              8   5   1024     none    none     7     28.0     17     5.25   M /  FH
                  1333              4       1024     none    none     7     28.0     17     5.25   M /  FH
                  1334              6   4   1024     none    none     7     30.0     17     5.25   M /  FH
                  1335              8   5   1024     none    none     7     30.0     17     5.25   M /  FH
                  1353              4   2   1024     none    none     7     28.0     17     5.25   M /  FH
                  1354              6       1024     none    none     7     30.0     17     5.25   M /  FH
                  1355              8   5   1024     none    none     7     30.0     17     5.25   M /  FH
                  1551              7       1024     none    none     7     30.0     17     5.25   M /  FH
                  1554             11       1224     none    none     7     30.0     17     5.25   M /  FH
                  1555             12       1224     none    none     7     30.0     17     5.25   M /  FH
                  1556             13       1224     none    none     7     30.0     17     5.25   M /  FH
                  1557             14       1224     none    none     7     30.0     17     5.25   M /  FH
                  1558             15       1224     none    none     7     30.0     17     5.25   M /  FH
                  1323A             5   3   1024     none    none     7     28.0     26     5.25   R /  FH RLL
                  1324A             7   4   1024     none    none     7     28.0     26     5.25   R /  FH RLL
 ** Number of Platters                                * Controller Type - M = MFM  R = RLL  E = EDSI  S = SCSI  O = Other  ? = N/A


                                                         South Texas BBS I
                                                            HD Listing
                                                           713-894-5636

                                       **          Write    Reduce  Step  Access  Recom'd          Controller
 Manufacturer     Model           Hds  Pl Cylndrs  PreComp  Write   Rate  Time    Sec/trk  Dimsn   Type*/Comment
 ===============  =============== ==== == =======  =======  ======  ====  ======  =======  ======  ================================
 MICROPOLIS       1333A             5   3   1024     none    none     7     28.0     26     5.25   R /  FH RLL
                  1334A             7       1024     none    none     7     28.0     26     5.25   R /  FH RLL
                  1353A             5   3   1024     none    none     7     28.0     26     5.25   R /  FH RLL
                  1354A             7   4   1024     none    none     7     28.0     26     5.25   R /  FH RLL
                  1373              4   3   1024                            23.0     36     5.25   S /  FH
                  1373A             5   3   1024                            23.0     36     5.25   S /  FH
                  1374              6   4   1024                            23.0     36     5.25   S /  FH
                  1374A             7   4   1024                            23.0     36     5.25   S /  FH
                  1375              8   5   1024                            23.0     36     5.25   S /  FH
                  1576-11          11   6   1220                            18.0     36     5.25   S /  FH
                  1577-12          12   7   1220                            18.0     36     5.25   S /  FH
                  1577-13          13   7   1220                            18.0     36     5.25   S /  FH
                  1578-14          14   8   1220                            18.0     36     5.25   S /  FH
                  1578-15          15   8   1220                            18.0     36     5.25   S /  FH
                  1586-11          11   6   1628                            16.0     54     5.25   S /  FH
                  1587-12          12       1628                            16.0     54     5.25   S /  FH
                  1587-13          13   7   1628                            16.0     54     5.25   S /  FH
                  1588-14          14   8   1628                            16.0     54     5.25   S /  FH
                  1588-15          15   8   1628                            16.0     54     5.25   S /  FH
                  1597-10S         10       1834                            13.5     54     5.25   S /  FH
                  1597-13          13   7   1919                            14.0     54     5.25   S /  FH
                  1598-14          14   8   1919                            14.0     54     5.25   S /  FH
                  1598-15          15   8   1919                            14.0     54     5.25   S /  FH
                  1673-4            4   3   1249                            16.0     36     5.25   S /  HH
                  1673-5            5   3   1249                            16.0     36     5.25   S /  HH
                  1674-6            6   4   1249                            16.0     36     5.25   S /  HH
                  1674-7            7   4   1249                            16.0     36     5.25   S /  HH
                  1683-4            4   3   1776                            14.0     54     5.25   S /  HH
                  1683-5            5   3   1776                            14.0     54     5.25   S /  HH
                  1684-6            6   4   1776                            14.0     54     5.25   S /  HH
                  1684-7            7   4   1776                            14.0     54     5.25   S /  HH
                  1773-5            5       1140                            15.0     48     3.5    S /  HH 28-48
                  1774-6            6       1140                            15.0     48     3.5    S /  HH 28-48
                  1774-7            7       1140                            15.0     48     3.5    S /  HH 28-48
                  1775-8            8       1140                            15.0     48     3.5    S /  HH 28-48
                  1775-9            9       1140                            15.0     48     3.5    S /  HH 28-48
 MICROSCIENCE     5100              7   4    855                            18.0     36     3.5    E /  HH
                  7040              3        855                            18.0     36     3.5    E /  HH
                  7100              7   4    855                            18.0     36     3.5    E /  HH
                  HH-2012           4        306                             0.0                   E /
                  HH-2085           0          0                                                   E /
                  HH-2120           7   4   1024                            28.0     33     5.25   E /  HH
                  HH-2160           7   4   1276                            18.0     35     3.5    E /  HH
                  HH-1050           5   3   1024     none    none     0     28.0     17     5.25   M /  HH
                  HH-1075           7       1024                            28.0     17     5.25   M /  HH
                  HH-1090           7   4   1314                            28.0     17     5.25   M /  HH
                  HH-312            4        306     none    none     0      0.0     17            M /
                  HH-315            2        612     none    none     0      0.0     17            M /
                  HH-325            4        612     none    none     0     80.0     17            M /
                  HH-4050           5   3   1024                            18.0     17     3.5    M /  HH
                  HH-4070           7   4   1024                            18.0     17     3.5    M /  HH
                  HH-612            4        306     none    none     0      0.0     17            M /
 ** Number of Platters                                * Controller Type - M = MFM  R = RLL  E = EDSI  S = SCSI  O = Other  ? = N/A


                                                         South Texas BBS I
                                                            HD Listing
                                                           713-894-5636

                                       **          Write    Reduce  Step  Access  Recom'd          Controller
 Manufacturer     Model           Hds  Pl Cylndrs  PreComp  Write   Rate  Time    Sec/trk  Dimsn   Type*/Comment
 ===============  =============== ==== == =======  =======  ======  ====  ======  =======  ======  ================================
 MICROSCIENCE     HH-625            4        612                                     17            M /
                  HH-712            2        612     none    none     0    105.0     17     5.25   M /  HH
                  HH-712A           2        612                             0.0                   M /
                  HH-725            4        612     none    none     0    105.0     17     5.25   M / *DTC:Revision C can use RLL.
                  HH-825            4        612                            65.0     17     5.25   M /  HH
                  HH-1060           5   3   1024                            28.0     26     5.25   R /  HH
                  HH-1095           7       1024                            28.0     26     5.25   R /  HH
                  HH-1120           7   4   1314                            28.0     26     5.25   R /  HH
                  HH-330            4        612                             0.0     26            R /
                  HH-4060           5   3   1024                            18.0     26     3.5    R /  HH
                  HH-4090           7   4   1024                            18.0     26     3.5    R /  HH
                  HH-738            4        612                           105.0     26     5.25   R /  HH
                  HH-830            4        615                            65.0     26     5.25   R /  HH
                  6100              7   4    855                            18.0     36     3.5    S /  HH
                  6100              7   4    855                            27.8            3.5    S /
                  HH-1080           0          0                                                   S /
                  HH-3120           5   3   1314                            27.8            5.25   S /
                  HH-3120           5   3   1314                            28.0     36     5.25   S /  HH
                  HH-3160           7   4   1314                            27.8            5.25   S /
 MINISCRIBE       1302              0          0                             0.0                   ? /
                  3312              0          0                             0.0                   ? /
                  3085E             3       1270                            17.0            5.25   E /  HH
                  3130E             5       1250                            17.0            5.25   E /  HH
                  3180E             7   4   1250                            17.0            5.25   E /  HH   ESDI/SCSI
                  8051AT            4   2    745                            28.0     28     3.5    E / AT BUS
                  8225AT            2        745                            28.0     28     3.5    E /  FH   ESDI/SCSI
                  8450AT            4   2    745                            40.0     28     3.5    E /  FH   ESDI/SCSI
                  9000E            15   8   1224                            24.3            5.25   E /
                  9230              9       1224                            16.0            5.25   E /  FH   ESDI/SCSI
                  9230E             9       1224                            17.0            5.25   E /  FH   ESDI/SCSI
                  9380             15       1224                            16.0            5.25   E /  FH   ESDI/SCSI
                  9380E            15       1224                            17.0            5.25   E /  FH   ESDI/SCSI
                  9424E             8       1661                            17.0            5.25   E /  FH   ESDI/SCSI
                  9780E            15       1661                            17.0            5.25   E /  FH   ESDI/SCSI
                  1006              2        153      128                            17            M /
                  1012              4        153      128                            17            M /
                  2006              8        512                             0.0                   M /
                  2006              2        307      128                            17            M /
                  2012              4        306      128                    0.0     17            M /
                  3006              2        306                             0.0                   M /
                  3012              2        612                             0.0                   M /
                  3053              5       1024                            25.0     17     5.25   M /  HH
                  3053II            5       1024                            25.0     17     5.25   M /  HH
                  3085              7   4   1170      512     off     7     20.0     17     5.25   M /  HH
                  3130              5       1250                            17.0     17     5.25   M /  HH
                  3180              7   4   1250                            17.0     17     5.25   M /  HH   ESDI/SCSI
                  3212              2   1    612      128    off     7      85.0     17     5.25   M /  HH
                  3212 PLUS         2   1    612      128                   53.0     17     5.25   M /  HH
                  3412              4        306      128                    0.0     17            M /
                  3425              4        612        0     off     7     85.0     17     5.25   M /  HH
                  3425 PLUS         4        612              306           53.0     17     5.25   M /  HH
                  3650              6   3    809        0     off     7     61.0     17     5.25   M /  HH
 ** Number of Platters                                * Controller Type - M = MFM  R = RLL  E = EDSI  S = SCSI  O = Other  ? = N/A


                                                         South Texas BBS I
                                                            HD Listing
                                                           713-894-5636

                                       **          Write    Reduce  Step  Access  Recom'd          Controller
 Manufacturer     Model           Hds  Pl Cylndrs  PreComp  Write   Rate  Time    Sec/trk  Dimsn   Type*/Comment
 ===============  =============== ==== == =======  =======  ======  ====  ======  =======  ======  ================================
 MINISCRIBE       3650F             6        809        0     off     7     46.0     17     5.25   M /  HH
                  3675              6   3    809        0     off     7     61.0     17     5.25   M /  HH
                  4010              2        480      128                            17            M /
                  4020              4        480      128                            17            M /
                  5330              6        480      128                            17            M /
                  5338              6        612      306                            17            M /
                  5440              8        480      128                            17            M /
                  5451              8        612      306                            17            M /
                  6032              3       1024      512     off     7     28.0     17     5.25   M /
                  6053              5       1024      512     off     7     28.0     17     5.25   M /  FH
                  6074              7       1024      512                   28.0     17     5.25   M /  FH
                  6085              8       1024      512     off     7     28.0     17     5.25   M /  FH
                  6212              2        615        0     off     7      0.0     17            M /
                  7426              4        612      613                            17            M /
                  8212              2        615      128     off     7      0.0     17            M /
                  8412              4        306        0     off     7      0.0     17            M /
                  8425              4        615        0     off     7     68.0     17     3.5    M /
                  8425F             4        615        0     off     7     40.0     17     3.5    M / RLL
                  8425XT            4        615                            61.0     17     3.5    M /
                  8438XT            4        615                            61.0     17     3.5    M /
                  3438              4        613                            85.0     26     5.25   R /  HH
                  3438 PLUS         4        613                            53.0     26     5.25   R /  HH
                  6079              5       1024      512     off     7     28.0     26     5.25   R /  FH
                  6128              8       1024        0     off     7     28.0     26     5.25   R /
                  8051              5   3    981                                     26     3.5    R /
                  8225              2        771                                     26     3.5    R /
                  8225XT            4        615                            68.0     26     3.5    R /
                  8434F             4        615                            40.0     26     3.5    R /
                  8438              4        615      128     off     7     68.0     26     3.5    R /
                  8438F             4        615      128     off     7     40.0     26     3.5    R / RLL
                  8450              4   2    771                                     26     3.5    R /
                  8450A             4   2    745                                     26     3.5    R /
                  8450AT            4   2    745                                     26     3.5    R /
                  8450XT            4   2    805                                     26     3.5    R /
                  8450XT            4   2    805                            45.0     26     3.5    R /
                  3085S             3       1255                            17.0            5.25   S /
                  3130S             5       1255                            17.0            5.25   S /
                  3180S             7   4   1255                            17.0            5.25   S /
                  7040S             2   1   1156                            27.6            3.5    S /
                  7080S             4   2   1156                            27.6            3.5    S /
                  8051S             4   2    745                            28.0     28     3.5    S /
                  8425S             4        615                            68.0            3.5    S /
                  9000S            15   8   1220                            24.3            5.25   S /
                  9380S            15       1224                            16.0            5.25   S /
                  9424S             8       1661                            17.0            5.25   S /
                  9780S            15       1661                            17.0            5.25   S /
 MITSUBISHI       MR 5310E          5   3    977     none                   28.0     17     5.25   E /  HH
                  MR 521            2        612                            85.0     17     5.25   M /  HH
                  MR 522            4        612      300                   85.0     17     5.25   M /  HH
                  MR 533            3        971     none                    0.0     17     5.25   M /  HH
                  MR 535 MFM        5   3    971     none                   28.0     17     5.25   M /  HH
                  MR 535 RLL        5   3    971     none                   28.0     26     5.25   R /  HH
 ** Number of Platters                                * Controller Type - M = MFM  R = RLL  E = EDSI  S = SCSI  O = Other  ? = N/A


                                                         South Texas BBS I
                                                            HD Listing
                                                           713-894-5636

                                       **          Write    Reduce  Step  Access  Recom'd          Controller
 Manufacturer     Model           Hds  Pl Cylndrs  PreComp  Write   Rate  Time    Sec/trk  Dimsn   Type*/Comment
 ===============  =============== ==== == =======  =======  ======  ====  ======  =======  ======  ================================
 MMI              312               4   2    306      128    none     7      0.0                   M /
                  M 106             2   1    306      128    none     7     75.0     17     3.5    M /
                  M 112             4   2    306      128    none     7     75.0     17     3.5    M /
                  M 125             8   4    306      128    none     7     75.0     17     3.5    M /
                  M 206             2   1    306      128    none     7      0.0                   M /
                  M 212             4   2    306      128    none     7     70.0     17     5.25   M /
                  M 225             8   4    306      128    none     7     75.0     17     5.25   M /
                  M 306             2   1    306      128    none     7     75.0     17     3.5    M /
                  M 312             4   2    306      128    none     7     75.0     17     5.25   M /
                  M 325             8   4    306      128    none     7     75.0     17     5.25   M /
 NEC              D 3146H           8   4    615                                                   ? /
                  D 3661            7   4    915                            20.0            3.5    ? /
                  D 5127H           4   2    615                                                   ? /
                  D 5452           10   5    823                                                   ? /
                  D 5682           15   8   1633                                                   ? /
                  D 5652           10   5    823                            23.0     17     5.25   E /  HH
                  D 5655            7   4   1224                            18.0     35     5.25   E /
                  D 5662           15   8   1224                            18.0     35     5.25   E /
                  D 3126            4   2    615      256    none     7     85.0     17     3.5    M /
                  D 3142            8   4    642                            28.0     17     3.5    M /
                  D 5114            2   1    306                            85.0     17            M /
                  D 5124            4   2    306     none                   85.0     17     5.25   M /  HH
                  D 5126            4   2    615      128    none     7     85.0     17     5.25   M /  HH
                  D 5126H           4   2    615      128    none     7     40.0     17     5.25   M /  HH
                  D 5127            4   2    615      128    none     7      0.0     17     5.25   M /  HH
                  D 5146            8   4    615      128    none     7     85.0     17     5.25   M /  HH
                  D 5146H           8   4    615      128    none     7     40.0     17     5.25   M /  HH    RLL
                  D 5147            8   4    615      128    none     7      0.0     17     5.25   M /  HH
                  D 5147H           8   4    615      128    none     7      0.0     17     5.25   M /  HH
 NEI              RD 3127           2   1    612                             0.0                   M /
                  RD 3255           4   2    612                             0.0                   M /
                  RD 4127           4   2    306                             0.0     17            M /
                  RD 4255           8   4    306                             0.0                   M /
 NEWBURY DATA     NDR 2190         15   8   1224                                                   ? /
                  NDR 4170          7   4   1224                                                   ? /
                  NDR 4380         15   8   1224                                                   ? /
                  NDR 4175          7   4   1224     none                   28.0     36     5.25   E /  FH
                  NDR 4380         15   8   1224     none                   28.0     36     5.25   E /  FH
                  1065              7   4    918                            25.0     17     5.25   M /  FH
                  1085              8   4   1025     none                   26.0     17     5.25   M /  FH
                  1105             11   6    918     none                   25.0     17     5.25   M /  FH
                  1140             15   8    918     none                   25.0     17     5.25   M /  FH
                  1140-            15   8   1024                            25.0     17     5.25   M /  FH
                  2190-            15   8   1024     none                   28.0     17     5.25   M /  FH
                  NDR 340           8   4    615     none                   40.0     17     3.5    M /
                  NDR 360           8   4    615                                                   M /
                  2190             15   8    918     none                    0.0     17     5.25   N /  FH
                  320               4   2    615     none                    0.0                   N /
                  NDR 3170S         9   5   1224     none                   28.0     26     5.25   S /  FH
                  NDR 3280S        15   8   1224     none                   28.0     26     5.25   S /  FH
                  NDR 4380S        15   8   1224     none                   28.0     34     5.25   S /  FH
 NPL              NP 03-6           2   1    306                             0.0                   M /
 ** Number of Platters                                * Controller Type - M = MFM  R = RLL  E = EDSI  S = SCSI  O = Other  ? = N/A


                                                         South Texas BBS I
                                                            HD Listing
                                                           713-894-5636

                                       **          Write    Reduce  Step  Access  Recom'd          Controller
 Manufacturer     Model           Hds  Pl Cylndrs  PreComp  Write   Rate  Time    Sec/trk  Dimsn   Type*/Comment
 ===============  =============== ==== == =======  =======  ======  ====  ======  =======  ======  ================================
 NPL              NP 03-13          4   2    306                             0.0                   R / 315 RLL
                  NP 02-26S         4   2    640                             0.0                   S /
 OKIDATA          OD 526            4   2    615                             0.0     26            R /
                  OD 540            6   3    615                             0.0     26            R /
 OLIVETTI         HD662/11          2   1    612                                     17            M /
                  HD662/12          4   2    612                                     17            M /
 OTARI            C 214             4   2    306      128     128                    17            M /
                  C 519             6   3    306      128     128                    17            M /
                  C 526             8   4    306      128     128                    17            M /
 PANASONIC        JU-116            4   2    615                            85.0     17     3.5    M /
                  JU-128            7   4    733                            35.0     17     3.5    M /
 PRAIRETEK        Praire 120        2   1    615                            23.0     34     2.5    ? / New Glass media(?)
                  Praire 220        4   2    612                            28.0     17     2.5    ? / New Glass media(?)
                  Praire 240        4   2    615                            28.0     34     2.5    ? / New Glass media(?)
 PRIAM            617              11   6    752                                                   ? /
                  623              15   8    752                                                   ? /
                  630              15   8   1224                                                   ? /
                  617               7   4   1225                            20.0            5.25   E /  FH
                  628              11   6   1225                            18.0     35     5.25   E /  FH
                  638              15   8   1225                            20.0     34     5.25   E /  FH
                  502               7   4    755                                     17            M /
                  504               7   4    755                                     17            M /
                  514              11   6   1224                            22.0     17     5.25   M /  FH
                  519              15   8   1224     none                   22.0     17     5.25   M /  FH
                  ID 130           15   8   1224     none    none     7      0.0                   M /
                  S 14             11   6   1224     none    none     7      0.0                   M /
                  S 19             15   8   1224     none    none     7      0.0                   M /
                  V 150             5   3    987     none    none     7      0.0     17            M /
                  V 160             5   3   1166     none                    0.0     17            M /
                  V 170             7   4    987     none    none     7      0.0     17            M /
                  V 185             7   4   1166     none                    0.0     17            M /
                  V 130             3   2    987     none    none     7      0.0     26            R /
                  V 160             5   3   1166     none    none     7      0.0     17            R /
                  V 170             7   4    987     none    none     7      0.0     26            R /
                  717               7   4   1225                            20.0            5.25   S /  FH
                  728              11   6   1225                            20.0            5.25   S /  FH
                  738              15   8   1225                            20.0            5.25   S /  FH
 PTI              PT-325R           0          0                             0.0                   ? /
                  PT-225            4   2    615      300    none     7      0.0     17            M /
                  PT-234            4   2    820                            35.0     17            M /
                  PT-338            6   3    615     none    none     7     35.0     17     3.5    M /
                  PT-351            6   3    820                            35.0     17     3.5    M /
                  PT-238A           4   2    615                            35.0     26            R /  FOR AT BUS
                  PT-238R           4   2    615      300    none     7      0.0     26            R / RLL
                  PT-251A           4   2    820                            35.0     26            R /  FOR AT BUS
                  PT-251R           4   2    820                            35.0     26     5.25   R /
                  PT-338R           6   3    615     none    none     7      0.0     26            R / RLL
                  PT-357A           6   3    615                            35.0     26     3.5    R /  FOR AT BUS
                  PT-357R           6   3    615     none    none     7     35.0     26     3.5    R / RLL
                  PT-376A           6   3    820                            35.0     26     3.5    R /  FOR AT BUS
                  PT-376R           6   3    820                            35.0     26     3.5    R /
                  PT-4102R          8   4    820                            35.0     26     3.5    R /
 ** Number of Platters                                * Controller Type - M = MFM  R = RLL  E = EDSI  S = SCSI  O = Other  ? = N/A


                                                         South Texas BBS I
                                                            HD Listing
                                                           713-894-5636

                                       **          Write    Reduce  Step  Access  Recom'd          Controller
 Manufacturer     Model           Hds  Pl Cylndrs  PreComp  Write   Rate  Time    Sec/trk  Dimsn   Type*/Comment
 ===============  =============== ==== == =======  =======  ======  ====  ======  =======  ======  ================================
 PTI              PT-238S           4   2    615                            35.0            5.25   S /
                  PT-251S           4   2    820                            35.0     26     5.25   S /
                  PT-357S           6   3    615                            35.0     26     3.5    S /
                  PT-376S           6   3    820                            35.0     26     3.5    S /
 QUANTUM          PRO100            0          0                            19.0            3.5    E /
                  PRO145            0          0                            19.0            3.5    E /
                  Q-510             2   1    512      256    none     7     17.0                   M /
                  Q-520             4   2    512      256    none     7     17.0                   M /
                  Q-530             6   3    512      256    none     7     17.0                   M /
                  Q-540             8   4    512      256    none     7     17.0                   M /
                  LPS 105AT         4   2   1219                                     26     3.5    R /
                  LPS 52AT          2   1   1219                                     26     3.5    R /
                  PRO120            0          0                            19.0            3.5    R /   AT BUS
                  PRO170            0          0                            19.0            3.5    R /   AT BUS
                  PRO40AT           3   2      0                            19.0            3.5    R /   AT BUS
                  PRO80AT           6   3      0                            19.0            3.5    R /   AT BUS
                  LPS 105S          4   2   1219                                            3.5    S /
                  LPS 52S           2   1   1219                                            3.5    S /
                  PRO-105S          6   3   1019                                            3.5    S /
                  PRO-170S          7   4   1123                                            3.5    S /
                  PRO-210S          7   4   1156                                            3.5    S /
                  PRO-40S           3   2    834                                            3.5    S /
                  PRO-80S           6   3    834                                            3.5    S /
                  PRO120S           5   3   1123                            19.0     48     3.5    S /  120
                  PRO170            0          0                            19.0            3.5    S / 168 meg
                  PRO40             0          0                            19.0            3.5    S /  42
                  PRO80             0          0                            19.0            3.5    S /  84
                  Q-160            12   6      0                            26.0            5.25   S /  HH
                  Q-250             4   2    823                            26.0            5.25   S /  HH
                  Q-280             6   3    823                            26.0            5.25   S /  HH
 QUME             R 200             0          0                             0.0                   ? /
                  R 300             0          0                             0.0                   ? /
 RICOH            5130              2   1    612      400    none     7     85.0     17            M /
                  RH-5260           2   1    615                            85.0     17            M /  REMOV.
                  RH-5261           2   1    612                            85.0                   S /  REMOV.
 RMS              RMS 503           2   1    153       77      77     0      0.0                   M /
                  RMS 506           4   2    153       77      77     0      0.0                   M /
                  RMS 512           8   4    153       77      77     0      0.0                   M /
 RODIME           RO 206            0          0                             0.0                   ? /
                  RO 101            2   1    192        0      96     7      0.0     17     5.25   M /  FH
                  RO 102            4   2    192        0      96     7      0.0     17     5.25   M /  FH
                  RO 103            6   3    192        0      96     7     55.0     17     5.25   M /  FH
                  RO 104            8   4    192        0      96     7      0.0     17     5.25   M /  FH
                  RO 201            2   1    321        0     132     7     85.0     17     5.25   M /  FH
                  RO 201E           2   1    640        0    none     7     55.0     17     5.25   M /  FH
                  RO 202            4   2    321        0     132     7     85.0     17     5.25   M /  HH
                  RO 202E           4   2    640        0    none     7     55.0     17     5.25   M /  FH
                  RO 203            6   3    321        0     132     7     85.0     17     5.25   M /  HH
                  RO 2031           6   3    320                                                   M /
                  RO 203E           6   3    640        0    none     7     55.0     17     5.25   M /  FH
                  RO 204            8   4    321        0     132     7     85.0     17     5.25   M /  FH
                  RO 204E           8   4    640        0    none     7     55.0     17     5.25   M /  FH
 ** Number of Platters                                * Controller Type - M = MFM  R = RLL  E = EDSI  S = SCSI  O = Other  ? = N/A


                                                         South Texas BBS I
                                                            HD Listing
                                                           713-894-5636

                                       **          Write    Reduce  Step  Access  Recom'd          Controller
 Manufacturer     Model           Hds  Pl Cylndrs  PreComp  Write   Rate  Time    Sec/trk  Dimsn   Type*/Comment
 ===============  =============== ==== == =======  =======  ======  ====  ======  =======  ======  ================================
 RODIME           RO 251            2   1    306                            85.0     17     5.25   M /  HH
                  RO 252            4   2    306      128      64           85.0     17     5.25   M /  HH
                  RO 252F           4   2    306                             0.0                   M /
                  RO 3000A-XLAT     5   3    992                                     17            M /
                  RO 3045           5   3    872        0    none     7     28.0     17            M /
                  RO 3055           6   3    872        0    none     7     28.0     17            M /
                  RO 3065           7   4    872                            28.0     17            M /
                  RO 351            2   1    306                            85.0     17            M /
                  RO 365            4   2    612                                     17     3.5    M /
                  RO 5065           5   3      0                            28.0     17     5.25   M /  HH
                  RO 5065           5   3   1224                                     17            M /
                  RO 5090           7   4   1224                            28.0     17     5.25   M /  HH
                  RO 3000A-NAT      5   3    625                                     27            R /
                  RO 3060R          5   3    750                                     26            R /
                  RO 3075R          6   3    750                                     26            R /
                  RO 3085R          7   4    750                                     26            R /
                  RO 352            4   2    306      128      64     7     85.0     17     3.5    R /  HH
                  RO 5090R          7   4   1224                                     26            R /
                  RO 3057S          5   3    680                            28.0                   S /
                  RO 3070S          0          0                            28.0                   S /
                  RO 3085S          7   4    750                            28.0                   S /
                  RO 5040           3   2   1224                            28.0                   S /
                  RO 5075S          0          0                            28.0            5.25   S /  HH
                  RO 5125S          5   3   1219                            28.0            5.25   S /  HH
                  RO 5180S          7   4   1219                            28.0            5.25   S /  HH
                  RO 652A           0          0                            85.0                   S /
                  RO 652B           4   2    306                            85.0                   S /
                  RO 752A           0          0                            85.0            5.25   S /  HH
 SEAGATE          ST-112            0          0                             0.0                   ? /
                  ST-4192E          8   4   1147                      7     17.0     36     5.25   E / SCSI interface
                  ST-125            4   2    615     none    none     7     40.0     17     3.5    M /  Old designation 28 ms
                  ST-125-1          4   2    615     none    none     7     28.0     17     3.5    M /
                  ST-125A           4   2    404     none    none     7     28.0     26     3.5    M / RLL AT 16 bit
                  ST-125A-1         4   2    404     none    none     7     28.0     26     3.5    M / RLL AT 16 bit
                  ST-138            6   3    615     none    none     7     40.0     17     3.5    M /  Old designation 28 ms
                  ST-138-1          6   3    615     none    none     7     28.0     17     3.5    M /
                  ST-151            5   3    977     none    none     7     24.0     17     3.5    M / 23ms 3.5"
                  ST-206            2   1    306      128                    0.0     17     5.25   M /  FH
                  ST-212            4   2    306      128     128     7      0.0     17     5.25   M /  FH
                  ST-213            2   1    615      300    none     7      0.0     17     5.25   M /  FH
                  ST-225            4   2    615      300    none     7     65.0     17     5.25   M /  HH
                  ST-251            6   3    820     none    none     7     40.0     17     5.25   M /  HH
                  ST-251-1          6   3    820     none    none     7     28.0     17     5.25   M /  HH
                  ST-252            6   3    820                            48.3     17     5.25   M /
                  ST-4026           4   2    615      300    none     5      0.0     17     5.25   M /  FH
                  ST-4030           5   3    733              354            0.0     17     5.25   M /
                  ST-4038           5   3    733      300    none     7     40.0     17     5.25   M /  FH
                  ST-4038M          5   3    733     none                   40.0     17     5.25   M /
                  ST-4051           5   3    977     none    none     7     40.0     17     5.25   M /  FH
                  ST-4053           5   3   1024     none                   28.0     17     5.25   M /  FH
                  ST-406            2   1    306      128     128     7      0.0     17     5.25   M /  FH
                  ST-4096           9   5   1024     none    none     7     28.0     17     5.25   M /  FH
 ** Number of Platters                                * Controller Type - M = MFM  R = RLL  E = EDSI  S = SCSI  O = Other  ? = N/A


                                                         South Texas BBS I
                                                            HD Listing
                                                           713-894-5636

                                       **          Write    Reduce  Step  Access  Recom'd          Controller
 Manufacturer     Model           Hds  Pl Cylndrs  PreComp  Write   Rate  Time    Sec/trk  Dimsn   Type*/Comment
 ===============  =============== ==== == =======  =======  ======  ====  ======  =======  ======  ================================
 SEAGATE          ST-412            4   2    306      128     128     7      0.0     17     5.25   M /  FH
                  ST-419            6   3    306      128     128     7      0.0     17     5.25   M /  FH
                  ST-425            8   4    306                             0.0     17     5.25   M /  FH
                  ST-506            4   2    153      128     128     0      0.0     17     5.25   M /  FH
                  ST-706            2   1    306      128                    0.0     17     5.25   M /  FH
                  ST-1057A          3   2   1024                            20.0     26     3.5    R /
                  ST-1102A          5   3   1024                            20.0     26     3.5    R /
                  ST-1144A          7   4   1024                            20.0     26     3.5    R /
                  ST-138A           4   2    604     none    none     7     40.0     26     3.5    R / RLL AT 16 bit
                  ST-138A-1         4   2    604     none    none     7     28.0     26     3.5    R / RLL AT 16 bit
                  ST-138R           4   2    615     none    none     7     40.0     26     3.5    R / RLL
                  ST-138R-1         4   2    615     none    none     7     28.0     26     3.5    R / RLL  Old designation 28 ms
                  ST-157A           6   3    539     none    none     7     40.0     26     3.5    R / RLL  AT 16 bit
                  ST-157A-1         6   3    539     none    none     7     28.0     26     3.5    R / RLL  AT 16 bit
                  ST-157R           6   3    615     none    none     7     40.0     26     3.5    R / RLL
                  ST-157R-1         6   3    615     none    none     7     28.0     26     3.5    R / RLL  Old designation 28 ms
                  ST-225R           2   1    667     none    none     7     70.0     26     5.25   R / RLL/ARLL
                  ST-238R           4   2    615      300    none     7     65.0     26     5.25   R /  HH
                  ST-250R           4   2    667     none    none     7     70.0     26     5.25   R / RLL/ARLL
                  ST-251R           6   3    820     none    none     7     40.0     26     5.25   R / RLL
                  ST-277R           6   3    820     none    none     7     40.0     26     5.25   R / RLL
                  ST-277R-1         6   3    820     none    none     7     28.0     26     5.25   R / RLL  3.5"
                  ST-278R           6   3    820                            48.3     26     5.25   R /
                  ST-3057A          3   2   1024                            20.0     26     3.5    R /
                  ST-3096A          3   2   1024                            20.0     26     3.5    R /
                  ST-4077R          5   3   1024     none    none     7     28.0     26     5.25   R / RLL
                  ST-4144R          9   5   1024     none    none     7     28.0     26     5.25   R /
                  ST-1057N          3   2                                   28.3            3.5    S /
                  ST-1096N          7   4    906     none    none     7     24.0            3.5    S / SCSI
                  ST-1102N          5   3                                   28.3            3.5    S /
                  ST-1144N          7   4                                   28.3            3.5    S /
                  ST-125N           4   2    407     none    none     7     40.0     35     3.5    S / SCSI
                  ST-125N-1         4   2    407     none    none     7     28.0     35     3.5    S / SCSI
                  ST-138N           4   2    613     none    none     7     40.0     35     3.5    S / SCSI  Old designation 28 ms
                  ST-138N-1         4   2    613     none    none     7     28.0     35     3.5    S / SCSI
                  ST-157N           6   3    613     none    none     7     40.0     26     3.5    S / SCSI  Old designation 28 ms
                  ST-157N-1         6   3    613     none    none     7     28.0     26     3.5    S / SCSI
                  ST-177N           5   3    921     none    none     7     24.0     26     3.5    S / SCSI  Old designation 28 ms
                  ST-225N           4   2    615      300    none     7     65.0     17     5.25   S / SCSI
                  ST-250N           4   2    588                            80.0            5.25   S /
                  ST-251N           4   2    818     none    none     7     40.0     26     5.25   S / SCSI
                  ST-251N-1         4   2    818     none    none     7     28.0     26     5.25   S / SCSI
                  ST-277N           6   3    820     none    none     7     40.0     26     5.25   S / SCSI
                  ST-277N-1         6   3    628     none    none     7     28.0     26     5.25   S / SCSI
                  ST-296N           6   3    818                            28.0     34     5.25   S /  HH
                  ST-3057N          6   3   1024                            28.3            3.5    S /
                  ST-3096N          3   2                                   28.3            3.5    S /
                  ST-4051N          5   3    977              n/a            0.0                   S /
                  ST-4077N          5   3   1024     none    none     7     28.0     34     5.25   S / SCSI
                  ST-4096N          8   4   1147     none    none     7     28.0            5.25   S / SCSI
                  ST-4144N          9   5   1024     none    none     7     28.0            5.25   S / SCSI
                  ST-4192N          8   4   1147                      7     17.0     36     5.25   S / SCSI
 ** Number of Platters                                * Controller Type - M = MFM  R = RLL  E = EDSI  S = SCSI  O = Other  ? = N/A


                                                         South Texas BBS I
                                                            HD Listing
                                                           713-894-5636

                                       **          Write    Reduce  Step  Access  Recom'd          Controller
 Manufacturer     Model           Hds  Pl Cylndrs  PreComp  Write   Rate  Time    Sec/trk  Dimsn   Type*/Comment
 ===============  =============== ==== == =======  =======  ======  ====  ======  =======  ======  ================================
 SEAGATE SWIFT    94316-111         5   3   1072     none    none           23.3            3.5    E /
                  94316-155         7   4   1072                            23.3            3.5    E /
                  94316-200         9   5   1072                            23.3            3.5    E /
                  94355-100         9   5   1072                            23.3     17     3.5    M /
                  94355-150         9   5   1072                            23.3     17     3.5    M /
                  94314-136         5   3                                   23.3     26     3.5    R /
                  94354-111         5   3   1072                            23.3     26     3.5    R /
                  94354-126         7   4   1072                            23.3     26     3.5    R /
                  94354-133         5   3   1272                            23.3     26     3.5    R /
                  94354-155         7   4   1072                            23.3     26     3.5    R /
                  94354-160         9   5   1072                            23.3     26     3.5    R /
                  94354-186         7   4   1272                            23.3     26     3.5    R /
                  94354-200         9   5   1072                            23.3     26     3.5    R /
                  94354-230         9   5   1272                            23.3     26     3.5    R /
                  94311-136 SL      5   3                                   23.3            3.5    S /
                  94311-136S        5   3                                   23.3            3.5    S /
                  94351-111         5   3   1068                            23.3            3.5    S /
                  94351-126         7   4   1068                            23.3            3.5    S /
                  94351-133S        5   3   1268                            23.3            3.5    S /
                  94351-155         7   4   1068                            23.3            3.5    S /
                  94351-155S        7   4   1068                            23.3            3.5    S /
                  94351-160         9   5   1068                            23.3            3.5    S /
                  94351-186S        7   4   1268                            23.3            3.5    S /
                  94351-200         9   5   1068                            23.3            3.5    S /
                  94351-200S        9   5   1068                            23.3            3.5    S /
                  94351-230S        9   5   1268                            23.3            3.5    S /
 SEAGATE SWIFT S   94316-136        5   3            none    none           23.3            3.5    E / Third height
 SEAGATE WREN II  9416X FH          9   5    969                            24.8            5.25   E /
                  94155-85 FH       8   5   1024                            36.3     17     5.25   M /
                  94155-86 FH       8   5    925                            36.3     17     5.25   M /
                  94155-96 FH       8   5   1024                            36.3     17     5.25   M /
                  94205-50 HH       5   3    989                            36.6     17     5.25   M /
                  94155-135 FH      9   5    960                            36.3     26     5.25   R /
                  94204-74 HH       5   3                                   36.3     26     5.25   R /
                  94204-81 HH       5   3                                   36.3     26     5.25   R /
                  94205-70 HH       5   3    989                            36.3     26     5.25   R /
                  94211 HH          5   3                                   26.3            5.25   S /
 SEAGATE WREN IV  94246-180 HH      4   3   1453                            23.3            5.25   E /
 SEAGATE WREN V   94186 FH         15   8   1280                            24.3            5.25   E /
                  94186 FH         13   7   1412                            26.3            5.25   E /
                  94186H FH        15   8   1224                            22.8            5.25   E /
                  94211-125 HH      3   2   1068                            23.3            5.25   S /
 SEAGATE WREN VI  94244-219 HH      4   3   1747                            24.3     26     5.25   R /
                  94244-383 HH      7   4   1747                            24.3     26     5.25   R /
 SEGATE WREN III  9416X FH          9   5                                   24.8            5.25   S /
 SEGATE WREN RUN  94181-385H       15   8                                   19.0            5.25   S /
 SEGATE WREN V    94171-350 FH      9   5                                   24.8            5.25   S /
                  94171-376 FH      9   5                                   25.8            5.25   S /
                  94221-209 HH      5   3                                   26.3            5.25   S /
 SEGATE WREN VI   94241-383         7   4                                   24.3            5.25   S /
                  94241-502         7   4                                   24.3            5.25   S /
 SHUGART          SA 724            0          0                             0.0     17            ? /
 ** Number of Platters                                * Controller Type - M = MFM  R = RLL  E = EDSI  S = SCSI  O = Other  ? = N/A


                                                         South Texas BBS I
                                                            HD Listing
                                                           713-894-5636

                                       **          Write    Reduce  Step  Access  Recom'd          Controller
 Manufacturer     Model           Hds  Pl Cylndrs  PreComp  Write   Rate  Time    Sec/trk  Dimsn   Type*/Comment
 ===============  =============== ==== == =======  =======  ======  ====  ======  =======  ======  ================================
 SHUGART          SA 604            4   2    159      128     128     0      0.0     17            M /
                  SA 606            6   3    159      128     128     0      0.0     17            M /
                  SA 607            2   1    306      128                    0.0     17            M /
                  SA 612            4   2    311      128    none     0      0.0     17            M /
                  SA 706            2   1    306      128                    0.0     17            M /
                  SA 712            4   2    306      128                    0.0     17            M /
 SIEMENS          1200              8   4   1216                            25.0            5.25   E /  FH
                  1300             12   6   1216                            25.0            5.25   E /  FH
                  2200              8   4   1216                            25.0            5.25   E /  FH
                  2300             12   6   1216                            25.0            5.25   E /  FH
                  5710             15   8      0                            16.0                   E /
                  5720             15   8      0                            16.0                   S /
 SYQUEST          SQ 306R           2   1    306                             0.0     17            M / Removable cartridge
                  SQ 306RD          4   2    306     none    none     7      0.0     17            M / Removable cartridge
                  SQ 312            2   1    615                             0.0     17            M /
                  SQ 312RD          2   1    615     none    none     7      0.0     17            M / Removeable
                  SQ 315F           4   2    612     none    none     7      0.0     17            M /
                  SQ 319            2   1    612                             0.0     17            M /
                  SQ 325            4   2    612                             0.0     17            M /
                  SQ 325F           4   2    615     none    none     7      0.0     17            M /
                  SQ 338F           6   3    615     none    none     7      0.0     17            M /
                  SQ 340AF          6   3    640                                     17            M /
 T.I.                               4   2    153       64      64            0.0     17     5.25   M /  FH
 TANDON           TM 251            2   1    306                             0.0                   M /
                  TM 252            4   2    306     none    none     7      0.0     17            M /
                  TM 261            2   1    612                             0.0     17            M /
                  TM 262            4   2    615     none    none     7      0.0     17            M /
                  TM 3085           8   4   1024                            37.0     17            M /
                  TM 353            4   2    306                                     17            M /
                  TM 361            2   1    612                             0.0     17            M /
                  TM 362            4   2    615     none    none     7      0.0     17            M /
                  TM 501            2   1    306      153     128     0      0.0     17            M /
                  TM 502            4   2    306      153     128     0      0.0     17            M /
                  TM 503            6   3    306      153     128     0      0.0     17            M /
                  TM 6025           4   2    153     none     128     0      0.0     17            M /
                  TM 602S           4   2    153     none     128     0      0.0     17            M /
                  TM 6035           6   3    153     none     128     0      0.0     17            M /
                  TM 6035E          6   3    230      128     128     0      0.0     17            M /
                  TM 603S           6   3    153     none     128     0      0.0     17            M /
                  TM 603SE          6   3    230      128     128     0      0.0     17            M /
                  TM 703            5   3    733     none    none     7      0.0     17            M /
                  TM 705            5   3    962     none                    0.0                   M /
                  TM 755            5   3    981     none    none     7     37.0     17     3.5    M /
                  TM 244            4   2    782                            37.0     26            R /
                  TM 246            6   3    782                            37.0     26            R /
                  TM 262R           2   1    782                                     26     3.5    R /  186364-408
                  TM 264            4   2    782                            85.0     26     3.5    R /
                  TM 3085           8   4   1024                            37.0     26            R /
                  TM 344            4   2    782                            37.0     26     3.5    R /
                  TM 346            6   3    782                            37.0     26     3.5    R /
                  TM 362R           2   1    782                            85.0     26     3.5    R /
                  TM 364            4   2    782                            85.0     26     3.5    R /  186364-102
 ** Number of Platters                                * Controller Type - M = MFM  R = RLL  E = EDSI  S = SCSI  O = Other  ? = N/A


                                                         South Texas BBS I
                                                            HD Listing
                                                           713-894-5636

                                       **          Write    Reduce  Step  Access  Recom'd          Controller
 Manufacturer     Model           Hds  Pl Cylndrs  PreComp  Write   Rate  Time    Sec/trk  Dimsn   Type*/Comment
 ===============  =============== ==== == =======  =======  ======  ====  ======  =======  ======  ================================
 TANDON           TM 702            4   2    615     none    none     7      0.0     26            R /
                  TM 702AT          4   2    615     none                    0.0     26            R /
                  TM 703AT          5   3    733     none                    0.0     26            R /
                  TM 2085           9   5   1004                            25.0                   S /
                  TM 2128           9   5   1004                            25.0                   S /
                  TM 2170           9   5   1344                            25.0                   S /
 TEAC             SD-540            0          0                             0.0                   ? /
                  SD-150            4   2    306                             0.0                   M /
                  SD-510            4   2    306      128     128     7      0.0     17            M /
                  SD-520            4   2    615      128     128     7      0.0     17            M /
                  SD-340            2   1   1050                            35.0     26     5.25   R /
                  SD-380            4   2   1050                            32.7     26     3.5    R /
                  SD-340            2   1   1050                            35.7            3.5    S /
                  SD-380            4   2   1050                            32.7            3.5    S /
 TOKICO           DK-503-2          4   2    306                             0.0                   M /
 TOSHIBA          MK-153FA          5   3    831                            23.0     35     5.25   E /  FH
                  MK-154FA          7   4    831                            23.0     35     5.25   E /  FH
                  MK-156FA         10   5    830                            31.3            5.25   E /
                  MK-250F          10   5   1224                            18.0     35     5.25   E /  FH EDSI/SCSI
                  MK-134FA          7   4    733                            25.0     17     3.5    M /
                  MK-53F            5   3    830      512                   30.0     17     5.25   M /  FH
                  MK-53FA           5   3    830      512    none     7     30.0     17     5.25   M /  FH
                  MK-54F            7   4    830      512                   30.0     17     5.25   M /  FH
                  MK-54FA           7   4    830      512    none     7     30.0     17     5.25   M /  FH
                  MK-56F           10   5    830      512                   30.0     17     5.25   M /  FH
                  MK-56FA          10   5    830      512    none     7     30.0     17     5.25   M /  FH
                  MK-53F-R          5   3    830                                                   R /
                  MK-53FB           5   3    830      512    none     7     23.0     26     5.25   R /  FH
                  MK-54F-R          7   4    830                                                   R /
                  MK-54FB           7   4    830      512    none     7     25.0     26     5.25   R /  FH
                  MK-56F-R         10   5    830                                                   R /
                  MK-56FB          10   5    830      512    none     7     25.0     26     5.25   R /  FH
                  MK-153FB          5   3    830                            23.0     35     5.25   S /  FH
                  MK-154FB          7   4    830                            23.0     35     5.25   S /  FH
                  MK-156FA         10   5    830                            23.0     35     5.25   S /  FH
                  MK-156FB         10   5    831                            23.0     35     5.25   S /  FH
                  MK-232FB          3   2    845                            33.3            3.5    S /
                  MK-233FB          5   4    845                            33.3            3.5    S /
                  MK-234FB          7   4    845                            33.3            3.5    S /
 TULIN            TL 213            2   1    612                             0.0     17            M /
                  TL 226            4   2    640     none    none     7      0.0     17            M /
                  TL 238            4   2    640     none                    0.0     17            M /
                  TL 240            6   3    640     none    none     7      0.0     17            M /
                  TL 258            6   3    640     none                    0.0     17            M /
                  TL 326            4   2    640     none    none     7      0.0     17            M /
                  TL 340            6   3    640     none    none     7      0.0     17            M /
 VERTEX           V130              3   2    987                                     17            M /
                  V150              5   3    987                                     17            M /
                  V170              7   4    987                                     17            M /
                  V185              7   4   1166                                     17            M /
 WESTERN DIGITAL  WD 262            4   2    615                            80.0     17     3.5    M /  to 5.25 HH
                  WD 362            4   2    615                            80.0     17     3.5    M /
 ** Number of Platters                                * Controller Type - M = MFM  R = RLL  E = EDSI  S = SCSI  O = Other  ? = N/A


                                                         South Texas BBS I
                                                            HD Listing
                                                           713-894-5636

                                       **          Write    Reduce  Step  Access  Recom'd          Controller
 Manufacturer     Model           Hds  Pl Cylndrs  PreComp  Write   Rate  Time    Sec/trk  Dimsn   Type*/Comment
 ===============  =============== ==== == =======  =======  ======  ====  ======  =======  ======  ================================
 WESTERN DIGITAL  WD 344R           4   2    782                            40.0     26     3.5    R /
                  WD 382R TM262R    2   1    782                            85.0     26     3.5    R /
                  WD 383R           4   2    615                            85.0     26     3.5    R /  HH
                  WD 384R TM364     4   2    782                            85.0     26     3.5    R /
                  WD 544R           4   2    782                            40.0     26     3.5    R /  5.25 HH  BRKT
                  WD 582R           2   1    782                            85.0     26     3.5    R /  to 5.25 HH  BRKT
                  WD 583R           4   2    615                            85.0     26     3.5    R /  HH  BRKT
                  WD 584R           4   2    782                            85.0     26     3.5    R /  5.25 HH  BRKT
                  WD93024-A         2   1    782                            37.0     26     3.5    R /
                  WD93028-A         2   1    782                            69.0     27     3.5    R /
                  WD93028-X         2   1    782                            70.0     27     3.5    R /
                  WD93038-X         3   2    782                            70.0     27     3.5    R /
                  WD93044-A         4   2    782                            37.0     26     3.5    R /
                  WD93048-A         4   2    782                            69.0     27     5.3    R /
                  WD93048-X         4   2    782                            70.0     27     3.5    R /
                  WD95028-A         2   1    782                            69.0     27     5.25   R /  HH
                  WD95028-X         2   1    782                            69.0     27     5.25   R /  HH
                  WD95038-X         3   2    782                            80.0     27     5.25   R /  HH
                  WD95048-A         4   2    782                            80.0     27     5.25   R /  HH
                  WD95048-X         4   2    782                            80.0     27     5.25   R /  HH
 WESTERN DYNEX    WD 505            2   1    310     none    none     7      0.0                   M /
 XEBEC            OWL I             4   2      0                            55.0            5.25   M /  HH
                  OWL II            4   2      0                            40.0            5.25   M /  HH
                  OWL III           4   2      0                            38.0            5.25   M /  HH

 ===============  =============== ==== == =======  =======  ======  ====  ======  =======  ======  ================================



 ps. It appears that the Imprimis drives are now made by Seagate.






















 ** Number of Platters                                * Controller Type - M = MFM  R = RLL  E = EDSI  S = SCSI  O = Other  ? = N/A



