Simon, is your gstreamer0.10-plugins-good up to date, i.e. 0.10.3-0ubuntu4?
-- gstreamer0.10 refuses to play certain valid MP3s (not all, but some) https://launchpad.net/bugs/42247 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs