MediaPortal is an Open Source application ideal for turning your PC in a very advanced Multi-Media Center / HTPC. MediaPortal allows you to listen to your favorite music & radio, watch your video's and DVD's, view, schedule and record live TV and much more. You get MediaPortal for free, as Open Source software. This means anyone can help develop MediaPortal or tweak-it for their own needs!

http://www.team-mediaportal.com/