Several of those "drive"s were single board
CP/M computers, including a
few that were Ampro. The CP/M computer could read and write MFM
diskettes, and communicate with the Mac. Most used SCSI or serial for the
communication. But they were marketed as MFM "DRIVE"s.
I believe that the Indus GT drives for the Atari and
Commodore 8bits fall into this catagory.
Jeff
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