Creating an 8-inch floppy from 3.5-inch Teledisk image
dave06a at dunfield.com
Sat Mar 24 16:36:20 CDT 2007
Btw, if anyone still needs them, I have converted the ACS8000 disks
in question to .IMD format and posted them to my site.
The CP/M 2.21 and 2.24 disks are both single-density all the way
through and converted with no problems.
The CP/M 2.24A disk appears to be a double-density disk with single-
density boot tracks - There were two problems:
- Tracks 70-77 are missing sector 6 for some unknown reason...
However I checked with IMDV and the other sectors on these
tracks do not contain data - so it's not likely to be a
problem as a boot disk.
- Track 2 appears as a single 128 byte SD sector with sector
ID #100 - don't ask me why ... ImageDisk read it OK and
stored it as read. TeleDisk gets the same thing (single
128byte SD sector with id=100), but after that it gets
confused and thinks the disk is a 48tpi disk in a 96tpi
drive and double-steps the the rest of the disk, complaining
all the way that the cylinder IDs are wrong) --- so I
can't say if this image will actually work or not.
dave06a (at) Dave Dunfield
dunfield (dot) Firmware development services & tools: www.dunfield.com
com Collector of vintage computing equipment:
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