quad density floppies
Howard E. Motteler
motteler at umbc4.umbc.edu
Sun Mar 3 16:59:15 AEST 1991
A while back, Michael G. Beirne writes:
> I use a Mitsubishi 5 1/4 inch 1.2 meg floppy jumpered to fix the
> disk speed and this gives me a 720K 5 1/4 floppy. This way I can
> just reformat my old 360K backup floppies and use them again.
Is this the same (or similar to) as the "quad-density" from way
back in the CP/M days?
I'd be interested in trying this. How reliable are the 5 1/4's
used this way? Would it be possible (e.g., with an external
switch) to toggle the drive between regular and half speeds, and
read both sorts of disks?
>Send me mail if you want the jumper
>list for the Mitsubishi drive and an "iv" description file.
Please post this (or mail me the info!) I suspect a number of
people might want to try it.
Howard E. Motteler | Dept. of Computer Science
motteler at umbc3.umbc.edu | UMBC, Catonsville, MD 21228
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