[comp.sys.mac] Bad Disks

francis@pawl.rpi.edu (Frank J. Schima) (01/22/90)

Every now and then, one of my high density disks will get a bad block
on it. When I try to reformat them on my disk drive (FDHD), it spits
out the disk saying 'Bad Format' during the verify pass. I now have 4
high density disks which will not format. The format program on
another competing computer system (I won't mention the name but it has
3 letters :^) will simply mark the bad blocks and allow the disk to be
used. 

Is there any program on the market (free or otherwise) which can mark
the bad blocks so that I can use the bad disks? 

Note that most of the time (the woefully inadequate) Disk First Aid
does not even *find* the bad blocks, and it is effectively useless as
far as my experience goes. 
-- 
francis@pawl.rpi.edu - Francis Schima