Re: Problems Detected with System 6

[mark@pokey.jsc.nasa.gov (Mark Manning)]

The version of System 6.0 which I have was the latest from Apple's
ftp.apple.com.  It is the complete five disk set.  I haven't tried
re-installing the system software, but everything else seems to work
without a glitch.

More on the disk going bad:

The disk does not go bad on the //gs.  It is when I try using the disk
on a Macintosh again (such as a IIfx or an SE or the IIci we have at
work) that it shows as being a bad disk.  I can no longer read the disk
and, in fact, get the "Disk unreadable.  Eject, Format, etc..." message.
The first time this happened was on a disk which didn't have anything
important.  I thought it was just the diskette.  The second time was
on a fairly important disk (My wedding information diskette with everyone's
names on it.).

Since I clean the drives every month I didn't think the disk drives were
dirty but I cleaned them anyway.  No visible dirt - maybe microscopic? ;)

Both diskettes have the same problem.  Track $10 (16) has been clobbered.
I'm not sure about the Mac diskettes, but I believe track $10 is the main
catalog track.  On the //e (the beautiful //e! :) ) I wrote a small disk
dump program which reads a track and dumps it to a disk as a file.  This
is how I recovered the other disk.  This diskette is rather important
because it contains information we might need for a court case.

Thanks so far to everyone who has offered ideas.  I'll give them a try to
see what happens and let everyone know.  :)