Okay, so I've had an EyeTV 250 Plus for about 8 months now and recorded quite a bit of High Quality footage that I would edit in iMovie HD '06 and make PS3 game montages and stuff and put it on YouTube. A 10 minute HQ movie captured in SD would come out to be about 500 mb once exported to Mpeg-4. I now have the Hauppauge HD-PVR and just captured 6 minutes of 720p HD footage from Warhawk which I edited in iMovie the same, added music, and then exported to Mpeg-4 and it's 210 mb. How is that possible? So if it was 10 minutes it would be still under what my SD movies were? And a side question - can someone tell me why when I capture a video and it's 500 mb in HD .. when I export it into iMovie HD settings while keeping the same quality the iMovie file is 5 GB?! How is it 10x the size?