I never had luck with diskdoctor,like most of Amiga users.
Especially if floppy was defragmented, and free space wasn't cleaned/wiped; the residue would confuse diskdoctor, IIRC.
If KS is 1.3, maybe Quarterback tools can help a bit, otherwise I'd use that disksalv.
If everything fails, there's always diskx, deksid, and a lot of patience.. :-D
Oh yeah, I remembered another one: amiback tools, (newer so it should be good)
