3.5" Altair CP/M

[Fred Cisin]

On Tue, 15 May 2007, Grant Stockly wrote:
> I have a tarbell floppy controller card that has been rewired to access
> 3.5" disks using a standard PC 3.5" disk drive.  I have 3 disks that the
> Altair can boot off of and read, but my windows computer can't do anything
> with them.  I've tried rawread.exe and diskinfo.exe and they both choke on
> the disk.  I assumed that if a disk could be written with the standard 3.5"
> disk drive on the tarbell card then it should also be read on the same
> drive connected to a modern IBM compatible.

Not necessarily.
What are the specifics of the format that the Tarbell controller is
writing on those disks?