On Sat, 2005-04-23 at 16:11 -0700, Vintage Computer Festival wrote:
  Is there anything in Linux that will dump a disk image
and put blank space
 where bad sectors are?  It's not certain if dd does this. 
I believe you want the 'noerror' (obviously) and 'sync' options to dd,
and it'll pad the data with zeros as necessary. (best way might be to
find a known-bad disk and see if you get the right image size out of
it!)
cheers
Jules