Due to an interesting corrupt floppy, an
internet search for a floppy recovery program was made. There are many recovery programs,
but very few for file recovery of bad, or corrupt floppies which may have trashed fats,
trashed root directory, bad sectors, etc.My test floppy had
36 bad sectors near the beginning, with 1.37megs of data, consisting of 36 files of a
binary nature.
The first challenge was to get an image copy of the floppy. It then
could be restored to a new floppy. This was done, however there was no directory
structure, although dos/windows reported no files taking up over a meg of
space and leaving 233k free. Cute.
A number of recovery programs were downloaded, both freeware and
demo shareware, and tried against the new floppy. Undelete only programs were not
considered. Programs which do not support recovery of binary data were not considered.
All tests were done using a standard 3.5 floppy drive under Win 98
with 384 megs of RAM. Tests took place from May 15 to May 22, 2003 using software releases
as described below.
Only two programs could actually scan and find
files on the floppy. Other programs could scan but found nothing. Still others didn't even
try or didn't find a thing.
All the information on this page applies to one set of
circumstances, which are unique. There are no guarantees for you and your milage may vary.
Use the information at your own risk.
