MythDVD and DVD

Default player is mplayer which doesn't support DVD menus/menuing and requires you to specify the title(s) to play in Settings; a real pain.

Changing to Xine:

http://wilsonet.com/mythtv/tips.php

xine -pfhq --no-splash dvd://

Specifying device:
vcd:///dev/cdrom@

Better OSD support too.

"The configuration can be done through a GUI as well as by editing a text file, and while the GUI is kind of ugly and clunky, is better than no GUI, which is what you've got with mplayer. The text file containing the settings for xine is also much better documented, though REALLY long."