Mark Hull-Richter a écrit :
I decided to go ahead and remove totem (don't much care for it anyway), and when I double-click a sound file in nautilus, it runs mplayer to play the file
What sound file? ogg? mp3? mpc? wma? wav? (ace? flac?)
Install xmms and xmms-mp3. Then find some SRPMs for xmms-wma and xmms-musepack on freshrpms. Check wiki.centos.org for how to build up a build environment for a simple user, it's very straightforward.
Then right-click on your respective sound files -> Properties -> choose to open them with XMMS.
Cheers,
Niki