gstremer is out to date eg official website: http://www.gstreamer.net/ GStreamer Core 0.10.29, Base Plugins 0.10.29, Good Plugins 0.10.22 stable releases in F-13: GStreamer Core 0.10.28 Base Plugins 0.10.28 Good Plugin 0.10.21 can you push this update please
The packages are on their way though the testing repositories and you can install them from there right now. See https://admin.fedoraproject.org/updates/gstreamer-0.10.29-1.fc13,gstreamer-plugins-base-0.10.29-1.fc13,gstreamer-plugins-good-0.10.22-2.fc13 for the current status.