DVD-RAM on Ubuntu

Some small steps with DVD-RAM on Ubuntu 9.10. I inserted a blank DVD-RAM disk and it was not automatically mounted. I tried mounting but there was no filesystem, so I formatted it as a test with:

mkfs.ext2 /dev/sr0

which took a while!
Then mounted it with:

sudo mount /dev/sr0 /home/me/tmp/dvdram -o rw

Unmounted with:

sudo umount /home/me/tmp/dvdram

After re-inserting the disk I get dmesg errors:

[22510.965841] UDF-fs: No VRS found
[22510.965849] UDF-fs: No partition found (1)
[22763.989069] UDF-fs: No VRS found
[22763.989077] UDF-fs: No partition found (1)
[22764.143430] ISOFS: Unable to identify CD-ROM format.
[22773.985755] UDF-fs: No VRS found
[22773.985763] UDF-fs: No partition found (1)
[22774.055009] ISOFS: Unable to identify CD-ROM format.

Oops! Looks like I should have formatted as UDF.
I had installed some udf tools with:
sudo apt-get install udftools libudf libudf0 libudf-dev
Looks like they are now picking up the DVD-RAM disc automatically and I maybe shouldn’t have formatted as ext2. So tomorrow night I will crack open another DVD-RAM disk and see where that takes me.

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