Extracting CDOS and CP/M) files

Hi Chuck, Exactly what version of 22disk were you using? Is it the newer version 2.x that you mentioned earlier? The version I am trying to use is 1.44 shareware. I am using the CRO4 definition. I've never actually used 22disk before, but I think I've got it right - here is a transcript of an attempt to copy files from the diskette: ------------------------------------------------------------------------ C:\22DISK>cdir b: CDIR Ver. 1.44-Oct 31 1996, Copyright 1996, Sydex. All rights reserved. THIS IS AN UNREGISTERED COPY--SEE DOCUMENTATION FOR DETAILS. Enter 1-4 character disk format type, or ENTER alone for list - cro4 Cromemco CDOS - DSDD 48 tpi 5.25" format * WARNING! * Two files found to use same diskette block -- You may be using the wrong disk definition Block: 0003, File: FRAME2.PIX B0:FRAME1.MAP B0:FRAME1.PIX B0:FRAME2.PIX 142K free on drive B: C:\22DISK>ctod b:*.* d: CTOD Ver. 1.44-Oct 31 1996, Copyright 1996, Sydex. All rights reserved. THIS IS AN UNREGISTERED COPY--SEE DOCUMENTATION FOR DETAILS. Enter 1-4 character disk format type, or ENTER alone for list - cro4 Cromemco CDOS - DSDD 48 tpi 5.25" format Copying B0:FRAME1.MAP to D:FRAME1.MAP Copying B0:FRAME1.PIX to D:FRAME1.PIX Error reading diskette B: (Cyl 1, Side 1, Sect 1): Sector not found Enter R - retry operation, A - abort program, I - ignore error Error reading diskette B: (Cyl 1, Side 1, Sect 1): Sector not found Enter R - retry operation, A - abort program, I - ignore error Error reading diskette B: (Cyl 1, Side 1, Sect 1): Sector not found Enter R - retry operation, A - abort program, I - ignore error C:\22DISK> ------------------------------------------------------------------ A little more information which may or may not be relevant: Mike Stein reproduced one of the ImageDisk images and use his Cromemco system to read the files and transfer them via serial cable to the PC (thanks Mike!) - The three files I received from him were: FRAME1.MAP - 128 bytes FRAME1.PIX - 88576 bytes FRAME2.PIX - 9984 bytes I sent these files to the author of the graphics program that is supposed to have originated them, and he things they should be bigger. He says the .MAP should be 768 bytes, and that the .PIX files should be much larger - they are 512x512x256 color images with RLE encoding, which means they could be up to 256k. As seen above 22disk reports 143k free on a 400k disk, quick math shows over 150k unaccounted for - There will of course be some overhead, but not that much ... but with the cross linked files reported, I don't know if the 143k free number can be trusted. Then, I dug out an XT and got it up and running (man I had forgotten the pain involved in getting a hard drive working on an XT)... UNIFORM works on this machine, and I am able to extract the same three files from the same disk. I get FRAME1.MAP and FRAME2.PIX exactly the same size and content as the files Mike sent to me - FRAME1.PIX comes out at only 6144 bytes in size, although it appears to be the same content as the first 6144 bytes of Mikes file. So it would appear that UNIFORM has issues as well. Dave -- dave06a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.classiccmp.org/dunfield/index.html