All codecs
This how i installed most codecs to play most media..
su -c
yum install -y --nogpgcheck http://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-stable.noarch.rpm http://download1.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-stable.noarch.rpm
yum -y install xine-ui gstreamer-plugins-bad-extras gstreamer-ffmpeg gstreamer-plugins-ugly gstreamer-plugins-bad
yum -y install totem totem-mozplugin totem-nautilus totem-pl-parser totem-xine mozplugger gecko-mediaplayer xmms xmms-faad2 libmad libid3tag libdvdread libdvdnav libquicktime vlc ffmpeg wget
yum -y install xine-lib-extras-freeworld xmms-mp3
wget http://www.mplayerhq.hu/MPlayer/releases/codecs/all-20110131.tar.bz2
tar -jxvf all-20110131.tar.bz2
mkdir -p /usr/local/lib/codecs
cp all-20110131/* /usr/local/lib/codecs
ln -sf /usr/local/lib/codecs /usr/lib/codecs && ln -sf /usr/local/lib/codecs /usr/local/lib/win32 && ln -sf /usr/local/lib/codecs /usr/lib/win32
rm -f all-20100303.tar.bz2
rm -rf all-20100303