22 Nov
2001
22 Nov
'01
5:32 a.m.
From: Chris <mythtech(a)Mac.com>
I've never had a problem READING 360k disks in a
1.2 drive. I have had
trouble writing them (but not always, and I think it might be related to
the disks being DD's, but formated as HD's and then back to DD's
again...
not sure). And I do know when formatting them under
dos, you need to
Nope. the compatability is not symetric. You can read with
80track(1.2m)
drives as the head width is narrower than the track for the 40
track(360k).
You cannot relaibly write as the narrow 80tr head cannot fully erase a
40tr
data track. You can fake it if you completely erase the media and use
a 80tr drive to write but reading that reliably is poor. If you then
write to
that with a 40tr drive once again it will write the wider track.
For that reason reading/writing across the 40/80 track drive sizes should
be limited to read only save for special cases (emergency). My
experience
is that (read only) is adaquate. If you have cross compatability on read
try
erasing the disk completely first.
Allison