I believe it's the libgstvideoparsersbad.so So with the bad plugin installed try this on 64 bit install
sudo mv /usr/lib/x86_64-linux- gnu/gstreamer-0.10/libgstvideoparsersbad.so /usr/lib/x86_64-linux- gnu/gstreamer-0.10/libgstvideoparsersbad.so.bak On a 32 bit install something like sudo mv /usr/lib/i386-linux- gnu/gstreamer-0.10/libgstvideoparsersbad.so /usr/lib/i386-linux- gnu/gstreamer-0.10/libgstvideoparsersbad.so.bak If anyone else can confirm we can alter the bug description -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/973014 Title: Fails to decode many common video files encoded as AVC 1 Baseline - L2.1, Baseline - L1.1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gstreamer0.10/+bug/973014/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs