Comment 11 for bug 1098323

I also have this problem, on 13.10. It seemed that /dev/dvd did not exist, but my DVD device was available as /dev/sr0. A symlink fixed it:

  sudo ln -s /dev/sr0 /dev/dvd

I guess this might only be temporary though (i.e. until I reboot).

It's worth noting that VLC played the DVD fine without the symlink.