You must NOT use cdrwtool to format DVD! It's only for CD-RW media (as the name
implies).
The procedure is this:
1) If you haven't already used a DVD media (it's virgin) then you must format
with: sudo dvd+rw-format /dev/$YOURDVDBURNER
2) Put a udf filesystem into your media with:
sudo mkudffs --spartable=2 --media-type=cdrw /dev/$YOURDVDBURNER
References from:
http://fy.chalmers.se/~appro/linux/DVD+RW/
This bug must be closed.
--
DVD for packet writing
https://launchpad.net/bugs/72515
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