(1) Note that the 32-bit package currently conflicts with the 64-bit one. Until this issue is fixed by the Debian/Ubuntu packagers this command will likely fail. (2) For licensing reasons Fedora does not include all the plugins so some audio/video formats may not be supported. More importantly support for 32-bit GStreamer plugins is broken on 64-bit Fedora. You can follow the situation on Fedora bug 1472160. (3)Support for 32-bit GStreamer plugins is broken on 64-bit openSUSE. You can follow the situation on openSUSE bug 1049452.