VMS Consolidated Software Distribution
Disc 1 of 1
May 1989
AG-MN36D-RE
Volume lable: CD_BIN_90402

Imaged using ddrescue GNU ddrescue 1.23 on 5.4.0-58-generic #64-Ubuntu SMP Wed Dec 9 08:16:25 UTC 2020 x86_64
Recovered using a TSSTcorp CDDVDW SH-224BB (rev SB00)

Note: some data NOT recovered.

Sanded with 1500 grit and 2000 sandpaper on multiple occasions. Read for over five days in total.

Final reads:

$ ddrescue -R -r5 -v /dev/sr1 CDROM-AG-MN36D-RE-1989-05-VMS-CONDIST.iso CDROM-AG-MN36D-RE-1989-05-VMS-CONDIST.map
GNU ddrescue 1.23
About to copy 623247 kBytes from '/dev/sr1' to 'CDROM-AG-MN36D-RE-1989-05-VMS-CONDIST.iso'
    Starting positions: infile = 0 B,  outfile = 0 B
    Copy block size: 128 sectors       Initial skip size: 128 sectors
Sector size: 512 Bytes

Press Ctrl-C to interrupt
Initial status (read from mapfile)
rescued: 619638 kB, tried: 3609 kB, bad-sector: 3609 kB, bad areas: 723

Current status
     ipos:  623243 kB, non-trimmed:        0 B,  current rate:       0 B/s
     opos:  623243 kB, non-scraped:        0 B,  average rate:   14305 B/s
non-tried:        0 B,  bad-sector:     4096 B,    error rate:      73 B/s
  rescued:  623243 kB,   bad areas:        1,        run time:      4m 12s
pct rescued:   99.99%, read errors:       32,  remaining time:         n/a
                              time since last successful read:      3m 22s
Finished                                   

$ ddrescue -r5 -v /dev/sr1 CDROM-AG-MN36D-RE-1989-05-VMS-CONDIST.iso CDROM-AG-MN36D-RE-1989-05-VMS-CONDIST.map
GNU ddrescue 1.23
About to copy 623247 kBytes from '/dev/sr1' to 'CDROM-AG-MN36D-RE-1989-05-VMS-CONDIST.iso'
    Starting positions: infile = 0 B,  outfile = 0 B
    Copy block size: 128 sectors       Initial skip size: 128 sectors
Sector size: 512 Bytes

Press Ctrl-C to interrupt
Initial status (read from mapfile)
rescued: 623243 kB, tried: 4096 B, bad-sector: 4096 B, bad areas: 1

Current status
     ipos:  623246 kB, non-trimmed:        0 B,  current rate:       0 B/s
     opos:  623246 kB, non-scraped:        0 B,  average rate:       0 B/s
non-tried:        0 B,  bad-sector:     4096 B,    error rate:      73 B/s
  rescued:  623243 kB,   bad areas:        1,        run time:      4m 31s
pct rescued:   99.99%, read errors:       40,  remaining time:         n/a
                              time since last successful read:         n/a
Finished                                   
 

