The ffmpeg version bundled with gstreamer0.10-ffmpeg is simply not new enough for wmv9/vc1 decoding. Even in CVS they're using an older version currently and are only fixing fundamental problems in the gstreamer plugin.
-- Totem can't play flash video files (*.flv) even though ffmpeg supports them https://launchpad.net/bugs/53219 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs