After three reboots I was finally able to mount a DVD and the command:
sudo /lib/udev/cdrom_id --debug /dev/sr0
worked now (output in attachment). But before the reboots the mount and the debug command didn't work at all.
After three reboots I was finally able to mount a DVD and the command:
sudo /lib/udev/cdrom_id --debug /dev/sr0
worked now (output in attachment). But before the reboots the mount and the debug command didn't work at all.