CMTxxx Subdirectories contain the 'preservation files' from the Kryoflux HW/SW.

CMTxxx.img files are image files created by the Kryoflux HW/SW.

dtc is the command line Kryoflux software used to read the floppies.

The command line format is:
;Calibrate the Kryoflux controller with the floppy un-powered (Min track).
dtc -c2
;Calibrate the Kryoflux controller with the floppy powered (Max track). 
dtc -c2

dtc -d0 -r5 -fCMT001\ -i0 -fCMT001.img -i4 -l8 -g2 -z2 -k2 -s0 -e39 >CMT001.log 
...
...
dtc -d0 -r5 -fCMT042\ -i0 -fCMT042.img -i4 -l8 -g2 -z2 -k2 -s0 -e39 >CMT042.log

dtc 
-d0				; select drive (default 0)
-l8				; reduce verbose output 
-r5				; revolutions to sample 
-fCMT032/		; subdirectory name 
-i0				; set image type (preservation) 
-fCMT032.img	; filename 
-i4 			; MFM sector image, 40/80+ tracks, SS/DS, DD/HD, 300, MFM
-g2 			; 0=side 0, 1=side 1, 2=both sides 
-z2  			; set sector size 0=128, 1=256, 2=512, 3=1024 (default 2)
-k2 			; set track distance 1=80 tracks, 2=40 tracks (default 1)
-s0 			; set start track  
-e39 			; set end track 
>CMT032.log		; Output log filename
