I've experienced the same issue yesterday, when trying to write a dvd at 16x
and all I got was something below that. Strangely enough, the system became
non-responsive 5 minutes after that and my dvd writer kept spinning on and on,
even after rebooting. I had to shutdown the system and restart it.
I have an LG dvd writer (don't know the model), os is Kubuntu Feisty, after upgrading.