As suggested in the upstream bug, I compiled gstreamer0.10.19, totem and banshee from source today. I can now confirm that this issue is fixed upstream since the 0.10.19 release of gstreamer-plugins-base. Dapper still needs a fix though.
-- "not negotiated" error after playing first file https://launchpad.net/bugs/50116 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs