Same problem has others note. DVD-R burning fails with the "unhandled
error" msg when using the tools shipped with Ubuntu.

I can successfully burn using NeroLinux, BUT Ubuntu has serious problems
reading the resulting UDF disc, which reads perfectly fine in other
operating system using the exact same DVD drive (dual-booting). Mounting
as a user results in failure:

$ mount /dev/hda
mount: wrong fs type, bad option, bad superblock on /dev/hda 
(...)
$ dmesg | tail
Unable to identify CD-ROM format

The fstab file contains the prerequisite line, so it should work - and indeed 
does with iso 9660 formatted DVDs (including DVD-R's).
/dev/hda /media/cdrom0 udf,iso9660 user,noauto 0 0

Mounting as root DOES work:

$ sudo mount  -t udf /dev/hda /media/cdrom0/

It doesn't stop there, though, because Ubuntu still cannot always read
the disk (and I've tried with 5 different DVD-Rs), even though dual-
booting into a different OS will allow me to read the disk EVERY time.
Typically, what happens is that the DVD is readable at first (allowing
e.g. to copy the entire contents or perform a sha1sum on them), but then
at some points stops working, just spitting out "input/output error".

This is possibly a different bug, I realize, but the DVD-R issue
certainly spans both, although I have no DVD+R disks to test with.

Ubuntu 7.04 AMD64, NEC2500A DVD burner.

-- 
Error while burning DVD-RWs: Input/output error
https://bugs.launchpad.net/bugs/15424
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