Date   : Mon, 11 Nov 1985 22:06:04 EST
From   : Eric Stork <STORK@MIT-MC.ARPA>
Subject: BUG IN FINDBAD??

This is an inquiry to the net about the possibility
of a BUG in FINDBAD60.

Had a disk go bad today.
Manipulation with DU2 confirmed two bad
sectors, in different groups.

Ran the disk through BADLIM, a commercial program
that finds and protect BAD SECTORS (by assigning the
group to a BSBSBSBS.BSB file). BADLIM did its
job nicely.

Then tried same thing with FINDBAD60 - to my surprise,
FINDBAD60 declared the disk to be just fine!

On earlier versions of FINDBAD, I had noted that
FINDBAD does not find all bad sectors that DU2
will hang up on, or that BADLIM will find and protect.

Anyone know about this? Anyone interested in tracking down
why FINDBAD apparently doesn't do its job as well as
it should?  I'm interested in working on the project,
but need a little guidance from someone who knows
about how FINDBAD & DU2 do their READ's, and what
other ways there are to READ that might be more
demanding.

Eric
STORK%MIT-MC