I just upgraded to 9.04 and now playing DVDs is not working. First if I tried playing DVDs using either DVD player I have (VLC/Gnome Mplayer) it just did absolutely nothing. I followed all the steps in 'essential packages' and 'dvd playback' in the stickied Howto thread, and now VLC gives me this error:

Playback failure:
VLC cannot set the DVD's title. It possibly cannot decrypt the entire disk.
Your input can't be opened:
VLC is unable to open the MRL 'dvd:///dev/scd0'. Check the log for details.

Gnome will play the DVD, but won't open menus. VLC won't play it even if I don't want the menus.