If you’ve installed/upgraded to Fedora 18 and you would like to play your media files (music and videos), this is the current way to go:
- Add RPM Fusion repository.
- Install codecs:
$ yum install gstreamer1-libav gstreamer1-plugins-ugly
For some reason the Totem’s auto-search function is now broken, so you have to do it manually. I suspect the reason is that the package names have changed (compared to Fedora 17 and earlier).
Of course all of this only applies to citizens of those countries where software patents are not valid. Otherwise this action would probably be illegal and you might receive a capital punishment or similar.