Open a terminal and become root using ‘su’.
Now type at terminal these commands to make your fedora play multimedia files.
# rpm -Uvh http://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-stable.noarch.rpm
# rpm -Uvh http://download1.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-stable.noarch.rpm
# yum -y install gstreamer-plugins-bad gstreamer-plugins-ugly xine-lib-extras-nonfree
# yum install xine xine-lib libdvdcss
Now you will be able to play mp3s and dvds in your fedora 11.