? I need realmedia demuxer plugin

Hello,
I'm looking for realmedia demuxer plugin. I didn't find on your songbird add-ons, and i tried to get one on http://gstreamer.freedesktop.org/docu..., but it is not available for songbird.

sorry, for this simple english.

My question is : where is it possible to find this plugin ?

Without this plugin, It is not possible to open audio files in the www.learntibetan.net ... please see image on the world file's attachment.

Thanks for your help, and for your project...

Antonio