• How to make all video/audio files work on an Ubuntu Breezy system » Eric’s Blog » Blog Archive
  Having trouble playing DVDs, MP3s, DiVX, AAC/MP4, XViD or WMV audio/video files on your Ubuntu Breezy system? Since these fomats are all proprietary, the companies that invented them require that developers purchase a (very expensive) license to legally decode (play back) files in these formats (with the exception of XViD which has had a completely different set of licence/patent-related problems), so Ubuntu cannot legally include these codecs in the base install.
  in Computing > Linux > Howto with aac audio computers computing decode developers divx dvds expensive fomats howto legally linux mp3s mp4 proprietary system tutorial ubuntu video wmv xvid

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