Enabling MP3 audio CD importing in Banshee

To be able to import audio CDs in Banshee Media Player install gstreamer0.10-lame: GStreamer lame plugins using
sudo aptitude install gstreamer0.10-lame
then restart Banshee and select Edit/Preferences/Audio CD/"MP3 (LAME Encoder)".

Enabling Xvid files in Xine and Kaffeine

To allow xine and kaffeine to play video files encoded using Xvid codec install libxine1-ffmpeg and libavutil49 using
sudo aptitude install libxine1-ffmpeg libavutil49
See also: #512946
[libavcodec51] Undefined symbols with latest libavutil49