On Tue, 23 Jun
1998, Allison J Parent wrote:
> <Shure, but where ? Just on a disk ? I already have the problem
> <that I can't read some fd's of the early 80s. Even APPLE II disks,
> <althrough I always said that a DISK ][ drive could read and write
> <anything including Bierdeckl (beer mats/coasters). 
 > Disks on good equipment are as reliable as
Magtape. 
  Better, I think, as with disks you need not be
concerned with layer to
 layer adhesion or layer to layer transfer. 
 Maybe I shoud take some damaged 5,25" disks to the VCF
 to show the effects of fd aging. It's a real mess when
 the magnetic surface is tearing down. I have dozends
 of deffect _mecanical_ disks and already ruined five
 drives - and it took me about 6 hours (and one damaged
 head) to clean one and get it back working. 
 
My experience with that failure mode has been largely limited
to 8" Verbatim floppies.  They supposedly had a 'lubricated'
surface to ease head wear.  Don't know whether that idea worked
or not, but they sure mucked up a couple of heads for me on a
temporary basis.  Spoiled some file transfer too!  I learned a
strong lesson from that, though.  Do a disk copy before you try
to read individual files!
                                                 - don