Re: 5.25" disk question

[david@wraith.cs.uow.edu.au (David E A Wilson)]

bcw@u.washington.edu (Bill Whitson) writes:

>On 11 Mar 1997 17:46:58 -0500, dalloff@freenet.columbus.oh.us (Dave
>Althoff) wrote:
>>SS/SD:  What the drive was designed for.
>>SS/DD; DS/DD:  What works just fine
>>DS/HD:  What you shouldn't use.

>Don't forget Double Sided / Quad Density!  (although I've got tons of
>'em I've never tried to use one on a Apple II.  I suspect they would
>have the same problems as DS/HD given that the two use the
>same physical magnetic medium.)

If by DS/QD you mean 5.25" 80 track 640/720KB disks then I think that they
have the same magnetic properties as DS/DD. All that changes is the drive
having twice as many tracks - the individual tracks are the same as on 320/360
KB disks. I have used dual speed 1.2MB drives strapped to 300rpm (low density)
to write 80 tracks on DS/DD disks with no problems what so ever.
-- 
David Wilson	Dept CompSci Uni Wollongong Australia	david@cs.uow.edu.au