DVD+RW burns 3GB but only reads back as 13MB

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To: Red Hat Users List <redhat-list@redhat.com>
Date: Sun, 28 Dec 2003 14:39:41 +1000

Hi,

Does anyone have any experience with DVD+RW burning? I am trying to
do it from command line (rather than use something like k3b) as I am
trying to work this into my backup scripts.

I used to use a CD-RW drive for doing backups but just replaced the
drive with a DVD+RW drive to cut down on the number of discs I have to
write.

No matter what I did I couldn't get dvdrecord working as a replacement
for cdrecord. Errors ranged from "cannot burn > 100 mins" to "Wrong
media".

After a bit of reading I found the growisofs command which seemed to
work fine. This is the command I gave to burn a 3GB tar file to the
DVD+RW

growisofs -dvd-compat -Z /dev/cdrom holding.tar

Now growisofs SAID it wrote the full 3GB and looking at the disc it
certainly has used most of the area as you can see where it has written
the data.

But when I try to read the disc in either of 2 DVD drives I have on the
system I can only see a 13MB file!

Any ideas cause this has got me stumped :(

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