Posted by tom_pach on 03/20/06 14:54

Hi,

I have a problem that started just recently; it was not present from
the beginning. At some point Nero started making expensive dual layer
coasters when writing video DVDs. Originally I had Nero 6; I just
reinstalled a newer version of the software (Nero 7), but the problem
persists.

Initially I thought it was a hardware failure, maybe a dirty lens in
the DVD burner, or something of this sort.

But when I checked individual files on the DVD, I noticed that it's IFO
and BUP files that had different size and hash, comparing to the source
files. In each IFO/BUP pair of files, they still had hash identical to
each other, but it was different than the hash of the original files.
So it's not a random glitch; Nero must be modifying those files for
some reason (and does it in synch!), which results in unreadable DVDs.

And also, if this were just a random glitch when writing to the disk,
it would've much more likely occured in huge VOB files, not in tiny
IFO's and BUP's.

Any ideas what's going on?

Thanks in advance!
Tom

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