I definatelly would say the Hauppage WinTV software!! It very easy to use and you can capture in mpeg 1 and 2. The quality is also very good!! Tried lots of other apps for it in the pass and they where crap and a pane in the ass!! I got the WinTV-PVR-250/350 card and I definatelly think it the best!!! :P
I hope this helps you!!
also check out:
http://www.tv-cards.com
Enjoy!!
Protecteur
