What's the file size of you're video snakebite? Is it in avi format?

I know that when I've transfering video from my camera to the hard drive, the file size is usually pretty damn big. In the gigs. It sees alot of compressing and chopping to make it download ready.

I've got some footage that I'd like to get going, but I keep forgeting to get my camera back from bigd. He's been borrowing it for like 8 months...