I just picked up a Pioneer HDD/DVD burner and had a quick question...(no, I haven't read the manual in its entirety yet...) If you're recording off a TV signal on XP (which is better image quality than SP, apparently) on to the hard drive, how many gigs would it take up? Would a two hour movie still burn on a DVD - R disc (4.whatever gigs) without requiring compression or is this venturing into dual layer DVD territory? Cheers!