A 1.44M drive has a "thinner" read/write head. If you write a 720k
floppy with a 1.44M drive, you will have a very difficult time reading
it in a 720k floppy drive. Reading, however, it shouldn't matter.
If you're just trying to ressurrect the data, why do you care? A 1.44M
drive will read a 720k floppy just fine.
Even the old c64 1581 drives were MFM (not GCR, like the 5 1/4 on the
1541 and the apple drives), so you don't need to worry about any GCR/MFM
madness with any 3.5" drives, outside of the data density of the
read/write head when writing to media.
Unless I'm missing something obvious here (while entirely possible, I
strongly doubt it).
- Ian C. Blenke <ian@blenke.com> http://ian.blenke.com/
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