Found the problem. The laptop was upgraded from dapper->edgy->feisty. In my /etc/fstab the cdrom was still referred to as /dev/hdb. Because it is now scd0 I always got two cdroms displayed in nautilus. To get rid of the false cd drive, I commented out the entry in the fstab. This led to the wrong behaviour of n-c-b.
Now I commented the fstab entry back in, replaced /dev/hdb with /dev/scd0 and everything is working as expected. -- [feisty] nautilus-cd-burner does not umount device and fails to erase automounted cdrw https://launchpad.net/bugs/82321 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs