On Wed, Nov 15, 2017 at 4:04 PM, Spiro Trikaliotis <ml-cbmhackers@trikaliotis.net> wrote: > Hello Ethan, > The 4040 uses a different inter-sector gap than the 2031 and the 1540 on > the one hand, and the 1541 and 1571 on the other hand. > > Note, however, that early ROMs of the 1541 (-01, -02) also used the > inter-sector-gap of the 2031 and 1540. Ah. That's when came into this (I couldn't afford a 4040 back when they were new). I was under the impression the half-height 2031 format (DOS 2.6) was identical to 1541, not 1540. Is there a difference between full-height 2031 and half-height 2031? > Thus, the later 1541 (starting with -03 ROM) should be fully read and > write compatible with the earlier 1541, 1540, 2031 and 4040 disk. Gotcha. -ethan Message was sent through the cbm-hackers mailing listReceived on 2017-11-16 01:00:03
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