22DISK

One method of extracting files from CP/M disks to a PC is to use 22DISK, once made by Sydex, which is a set of programs for DOS to perform operations on CP/M formatted disks.

There appears to be some level of controversy over distributing 22DISK these days (a good write up is here), but I suspect it has to do with Sydex putting up a web page offering to read old disks for people (something I do on this site at no charge). That said, a simple google search will produce many sites hosting this file. The most recent copy is v1.44 from October, 1996.

However, 22DISK requires “disk definitions” to read each disk. Larry Kraemer has prepared a set of “disk definitions” to enable 22DISK to read Model 4 Montezuma Micro CP/M to DOS, as follows:


BEGIN TRSG TRS80 Model 4,4P Montezuma System 170K – SSDD 48 tpi 5.25″
DENSITY MFM, LOW
CYLINDERS 40 SIDES 1 SECTORS 18,256
SIDE1 0 1,3,5,7,9,11,13,15,17,2,4,6,8,10,12,14,16,18
BSH 4 BLM 15 EXM 1 DSM 84 DRM 127 AL0 0C0H AL1 0 OFS 2
END


BEGIN TRSH TRS80 Model 4,4P Montezuma Data 200K – SSDD 48 tpi 5.25″
DENSITY MFM, LOW
CYLINDERS 40 SIDES 1 SECTORS 10,512
SIDE1 0 1,3,5,7,9,2,4,6,8,10
BSH 4 BLM 15 EXM 1 DSM 99 DRM 127 AL0 0C0H AL1 0 OFS 0
END


BEGIN TRSI TRS80 Model 4,4P Montezuma System 350K – DSDD 48 tpi 5.25″
DENSITY MFM, LOW
CYLINDERS 40 SIDES 2 SECTORS 18,256
SIDE1 0 1,3,5,7,9,11,13,15,17,2,4,6,8,10,12,14,16,18
SIDE2 1 1,3,5,7,9,11,13,15,17,2,4,6,8,10,12,14,16,18
ORDER EAGLE
BSH 4 BLM 15 EXM 1 DSM 174 DRM 127 AL0 0C0H AL1 0 OFS 2
END


BEGIN TRSJ TRS80 Model 4,4P Montezuma Data 400K – DSDD 48 tpi 5.25″
DENSITY MFM, LOW
CYLINDERS 40 SIDES 2 SECTORS 10,512
SIDE1 0 1,3,5,7,9,2,4,6,8,10
SIDE2 1 1,3,5,7,9,2,4,6,8,10
ORDER EAGLE
BSH 4 BLM 15 EXM 1 DSM 199 DRM 127 AL0 0C0H AL1 0 OFS 0
END


BEGIN TRSK TRS80 Model 4,4P Montezuma System 350K – SSDD 96 tpi 5.25″
DENSITY MFM, LOW
CYLINDERS 80 SIDES 1 SECTORS 18,256
SIDE1 0 1,3,5,7,9,11,13,15,17,2,4,6,8,10,12,14,16,18
BSH 4 BLM 15 EXM 1 DSM 174 DRM 127 AL0 0C0H AL1 0 OFS 2
END


BEGIN TRSL TRS80 Model 4,4P Montezuma Data 400K – SSDD 96 tpi 5.25″
DENSITY MFM, LOW
CYLINDERS 80 SIDES 1 SECTORS 10,512
SIDE1 0 1,3,5,7,9,2,4,6,8,10
BSH 4 BLM 15 EXM 1 DSM 199 DRM 127 AL0 0C0H AL1 0 OFS 0
END


BEGIN TRSM TRS80 Model 4,4P Montezuma System 710K – DSDD 96 tpi 5.25″
DENSITY MFM, LOW
CYLINDERS 80 SIDES 2 SECTORS 18,256
SIDE1 0 1,3,5,7,9,11,13,15,17,2,4,6,8,10,12,14,16,18
SIDE2 1 1,3,5,7,9,11,13,15,17,2,4,6,8,10,12,14,16,18
ORDER SIDES
BSH 4 BLM 15 EXM 0 DSM 354 DRM 127 AL0 0C0H AL1 0 OFS 2
END


BEGIN TRSN TRS80 Model 4,4P Montezuma Data 800K – DSDD 96 tpi 5.25″
DENSITY MFM, LOW
CYLINDERS 80 SIDES 2 SECTORS 10,512
SIDE1 0 1,3,5,7,9,2,4,6,8,10
SIDE2 1 1,3,5,7,9,2,4,6,8,10
ORDER SIDES
BSH 4 BLM 15 EXM 0 DSM 399 DRM 127 AL0 0C0H AL1 0 OFS 0
END


BEGIN TRSO TRS80 Model 4,4P Montezuma Extend System 190K – SSDD 48 tpi 5.25″
DENSITY MFM, LOW
CYLINDERS 40 SIDES 1 SECTORS 10,512
SIDE1 0 1,3,5,7,9,2,4,6,8,10
BSH 4 BLM 15 EXM 1 DSM 94 DRM 127 AL0 0C0H AL1 0 OFS 2
END


BEGIN TRSP TRS80 Model 4,4P Montezuma Extend System 390K – SSDD 48 tpi 5.25″
DENSITY MFM, LOW
CYLINDERS 40 SIDES 2 SECTORS 10,512
SIDE1 0 1,3,5,7,9,2,4,6,8,10
SIDE2 1 1,3,5,7,9,2,4,6,8,10
ORDER SIDES
BSH 4 BLM 15 EXM 1 DSM 194 DRM 127 AL0 0C0H AL1 0 OFS 2
END


BEGIN TRSQ TRS80 Model 4,4P Montezuma Extend System 390K – SSDD 96 tpi 5.25″
DENSITY MFM, LOW
CYLINDERS 80 SIDES 1 SECTORS 10,512
SIDE1 0 1,3,5,7,9,2,4,6,8,10
BSH 4 BLM 15 EXM 0 DSM 194 DRM 127 AL0 0C0H AL1 0 OFS 2
END


BEGIN TRSR TRS80 Model 4,4P Montezuma Extend System 790K – DSDD 96 tpi 5.25″
DENSITY MFM, LOW
CYLINDERS 80 SIDES 2 SECTORS 10,512
SIDE1 0 1,3,5,7,9,2,4,6,8,10
SIDE2 1 1,3,5,7,9,2,4,6,8,10
ORDER SIDES
BSH 4 BLM 15 EXM 0 DSM 394 DRM 127 AL0 0C0H AL1 0 OFS 2
END


BEGIN TRSS TRS80 Model 4,4P Montezuma Super Data 220K – SSDD 48 tpi 5.25″
DENSITY MFM, LOW
CYLINDERS 40 SIDES 1 SECTORS 6,1024
SIDE1 0 1,3,5,2,4,6
BSH 4 BLM 15 EXM 1 DSM 109 DRM 127 AL0 0C0H AL1 0 OFS 0
END


BEGIN TRST TRS80 Model 4,4P Montezuma Super Data 440K – DSDD 48 tpi 5.25″
DENSITY MFM, LOW
CYLINDERS 40 SIDES 2 SECTORS 6,1024
SIDE1 0 1,3,5,2,4,6
SIDE2 1 1,3,5,2,4,6
ORDER EAGLE
BSH 4 BLM 15 EXM 1 DSM 219 DRM 127 AL0 0C0H AL1 0 OFS 0
END


BEGIN TRSU TRS80 Model 4,4P Montezuma Super Data 440K – SSDD 96 tpi 5.25″
DENSITY MFM, LOW
CYLINDERS 80 SIDES 1 SECTORS 6,1024
SIDE1 0 1,3,5,2,4,6
BSH 4 BLM 15 EXM 1 DSM 219 DRM 127 AL0 0C0H AL1 0 OFS 0
END


BEGIN TRSV TRS80 Model 4,4P Montezuma Super Data 880K – DSDD 96 tpi 5.25″
DENSITY MFM, LOW
CYLINDERS 80 SIDES 2 SECTORS 6,1024
SIDE1 0 1,3,5,2,4,6
SIDE2 1 1,3,5,2,4,6
ORDER SIDES
BSH 4 BLM 15 EXM 0 DSM 439 DRM 127 AL0 0C0H AL1 0 OFS 0
END


BEGIN TRSW TRS80 Model 4,4P Montezuma System 400K – SSDD 96 tpi 3.5″
DENSITY MFM, LOW
CYLINDERS 80 SIDES 1 SECTORS 10,512
SIDE1 0 1,3,5,7,9,2,4,6,8,10
BSH 4 BLM 15 EXM 1 DSM 199 DRM 127 AL0 0C0H AL1 0 OFS 0
END


22DISK v1.44

