[Kaffeine-user] dvd not playing

[rhein <rhe...@tt...>]

Hello,
I installed Kaffeine on my compaq nx9005 notebook and I can not play DVDs.
I can play vcds, MP3s, CDs but no DVDs.
Does it have to do with the fact that it is a combo dvd/R-writer?
I tried also xine... same thing.
I don't know what to do because I'm new to linux.
Thanks for your help.
Christophe
ps: I'm running MDK 9.2