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Old April 17th 04, 11:13 PM
NobodyMan
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On Sat, 17 Apr 2004 16:08:50 GMT, K2 wrote:

I have tried various techniques of making an incremental backup CD-R
with Nero 5.5.10.54 using UDF and UDF/ISO formats. I mainly want to
backup digital camera photos as months go by, filling up one CD-R at a
time.

I have "Multisession" checked and everything seems to copy fine
(different files on different days, with the original Nero compilation
saved each time to retain the layout), but many of the files end up
corrupted on the CD-R even though the sizes and names are accurate.
They become unreadable, even with an app like ISOBuster. When I open a
UDF CD-R in ISOBuster I see many different sessions, some with corrupt
files, some without. Usually the corrupted files begin after a certain
date, whereas previous sessions seemed to save with no errors. I
really don't understand the format.

Is Nero UDF or UDF/ISO actually _designed_ to be used for incremental
backup like Nero InCD or Roxio Direct-CD? Years ago, Direct-CD never
gave me problems but I've gone the Nero route for various reasons.

Several CD-RWs formatted with Nero InCD have crashed on me (could be
InCD, could be the brand), which is why I've been trying to use UDF or
UDF/ISO as a substitute. Is there a good FAQ for this somewhere
instead of the scattered forum questions I've found? Nero's program
help is very limited.

K2


You seem to have some royally screwed up definitins here. You keep
comparing InCD to UDF, but InCD IS a UDF file system. You can't
compare the two as they are the same thing.

Only a true backup program can provide true backups. I don't think
you want to do incremental backups, which backup everything on your
partition that has had the archive bit set since the last full backup.
You just want to write a few files to the CDRW at a time. That's
fine, but don't call that an incremental backup.

I'm sorry, but any packet-writing program, be it Roxio or Nero, is
flaky. They work fine until they don't, then you are screwed. Use
them long enough and you WILL lose data, as you have eperienced.

Just juse regular, multi-session mastering, on a CDR. CDRWs seem to
have more failures. I have no scientific data to validate that, but
reading here, elsewhere, and talking to others in the profession seem
to indicate that.