Do you also have gstreamer0.10-plugins-bad-multiverse installed? What happens when you play the file with gst-launch playbin uri="file:///home/mute/Desktop/wölper.mp4"
please paste the output here if that fails to play, too ** Changed in: totem (Ubuntu) Assignee: (unassigned) => Sebastian Dröge Status: Unconfirmed => Needs Info -- mp4 fails to play, with error https://launchpad.net/malone/bugs/39071 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs