GarageBand theoretical recording limit

Hi,
I am the guy who recorded the ghostly voice using GarageBand. I want to leave it recording overnight in a supposed "haunted" house. Do you know how much disk space that would take up, say, 8 hours of solid recording?

Lots.

lol well I left it on all night..turns out the limit is 2GB files, which lasted almost 8 hours. Wow lol.

8 hours on only 2 gigs? Not bad at all- I figured it'd be a ton more than that.

Get anything on the recording?

I still have to analyze it lol..I will post if I do!