[comp.sys.apple] trashing prodos

seven@OLDBORAX.LCS.MIT.EDU ("Benjamin M. Levy") (04/25/87)

  after moving back from school, I had a problem with trashing
two prodos disks.  The computer had no problem loading programs
but it trashed track 0 on both of the disks.  After checking the
timing (via copy ][) and getting very strange results.  I checked
the cable attached to the disk drive.  I then discovered that the
cable wasn't properly attached.
  
Moral of the story:  Always make sure that your cables are properly
attached, and the connections are tight.