Comment 3 for bug 377414

I seem to be able to play the dvd (Dark Knight also), but attempting to backup with thoggen or any other dvd accessing application gives me this error so maybe Totem has worked around / fixed it inadvertently or otherwise.

apt-cache policy libdvdread4
libdvdread4:
  Installed: 4.1.3-5ubuntu2
  Candidate: 4.1.3-5ubuntu2
  Version table:
 *** 4.1.3-5ubuntu2 0
        500 http://au.archive.ubuntu.com karmic/universe Packages
        100 /var/lib/dpkg/status

apt-cache policy totem
totem:
  Installed: 2.28.2-0ubuntu3
  Candidate: 2.28.2-0ubuntu3
  Version table:
 *** 2.28.2-0ubuntu3 0
        500 http://au.archive.ubuntu.com karmic-updates/main Packages
        100 /var/lib/dpkg/status
     2.28.1-0ubuntu4 0
        500 http://au.archive.ubuntu.com karmic/main Packages

apt-cache policy thoggen
thoggen:
  Installed: 0.7.1-1ubuntu1
  Candidate: 0.7.1-1ubuntu1
  Version table:
 *** 0.7.1-1ubuntu1 0
        500 http://au.archive.ubuntu.com karmic/universe Packages
        100 /var/lib/dpkg/status