21 May
1997
21 May
'97
11:27 a.m.
On Wed, 21 May 1997, Bill Whitson wrote:
Hrm. I have done this rather successfully in the past. I know the
media
is different (ferrite vs. cobalt, I think) but I have formatted and used
HD disks in a QD drive without problems. At the same time I have found
problems using a HD in a DD drive. I'll remove this piece to prevent
problems but given the relative rarity of QD disks I'm interested to
know if anyone else has found this to work.
I've actually had very little problem using _good_quality_ 360k (DSDD)
disks in my Tandy 2000, which has a 720k drive (DSQD). I believe the
magnetic material was the same from the DD to QD, just packed
tighter/finer(?). Am I wrong?
ttfn
srw
7.3 Can these formats be interchanged?
Quad Density High Density
No! The media _is_ different magnetically. Quad density (80trk 5.25"
disks
with about 700-800K capacity) drives will not reliably work with high
density (1.2Mbyte) media. Please don't do it.