Download
WinDVR(trial version) its great

. Or get
Windows XP Media Center Edision 
.
Add me @ MSN/WLM(profile for id) for some more information about this topic
Edit :
quote:
Originally posted by kao
it's probably a good idea to try compressing it? google for something to compress video files
Thats of no help. How can one compress viedo while recording it?
Edit2 : The normal size is around 18-20 mb/min.
Edit3 : Visit
http://www.avermedia.com/ for drivers.