Why cant I play any Multimedia
 

I am using Fedora Core 4

I am trying to play the avi from Totem Movie Player
I cant even play mp3s
Error message : Resource busy or not available.

You will need to install codecs for everything. mp3 support has been taken out from Redhat since 8.0 (if I remember right). Check the FedoreFAQ for answers to your problem:

http://www.fedorafaq.org/

There's a link there about mp3 support

Good luck!