[NTLUG:Discuss] Bad CD-R disk with very imporant data.

[Stephen Klein]

I have a burned CD-R with some important data that came off of a Zip 250
disk, but there is something wrong with many of the files on the disk. 
Someone else burned this disk, probably from a windows system, and I
don't have a 250 MB zip drive (and the 100 MB Zip drive I have has the
click of death).  As best I can tell, it could be that the file
allocation table is incorrect, or not all of the data was correctly
written.  This is the error I am getting from the kernel, which leads me
to believe that the file table is corrupt (i.e. indicating a file is in
a place it shouldn't be.

attempt to access beyond end of device
0b:00: rw=0, want=119828, limit=6478
dev 0b:00 blksize=2048 blocknr=59913 sector=239652 size=2048 count=1

I thought if I could make an image of the disk with dd, I might be able
to run some sort of filesystem check program on it (one like e2fsck only
for iso9660).  Does such a filesystem check program exist, more
importantly, would it be able to repair it?

If that doesn't work, then my only option is to try and copy the data
from the zip disk.  I should be able to get the original zip disk, but
since I don't have a drive it's kinda pointless.

Would anyone with a 250MB zip drive be willing to bring theirs to the
meeting on Saturday and allow me to retrieve this very important data? 
It would be greatly appreciated by those who I am trying to help.

Thanks,
Stephen Klein