DVD playback codecs aren’t installed by default with Fedora 9.  I followed some steps I found here to try and get DVDs to play but it didn’t immediately work.  I can’t knock Linux on this.  Codecs have long had patent/license issues, even in the nix world.  You almost always have to pay for them.  This is true for Windows as well.  You don’t get DVD codecs for Vista Business or Vista Home.  You do get them with Vista Ultimate, however.  Or you have to buy a piece of software like Nero and uses their apps/codecs.  This is another thing I’ll have to look into a little deeper for Fedora.  I have know about the problem for a while but again, I usually just flip back over to Windows when I want to watch a movie.  My current agenda will be to find a way to get DVD playback without having to spend any cash.  I used to use MythTV and if my recollection is correct it supported DVD playback.  I’ll look into it.