Yeah, FRAPS records to raw AVI files so the file sizes are gargantuan, you can compress them down fairly far though! Managed to get a 2GB avi down to 300mb.
This is what hard drives are for!
Depending on the scene captured, 15 Mins can be more than 30GB.
My standard Half Size 30FPS Burnout Paradise Vids (1h - 1.5h) are between 200 & 300GB, They of course can be deleted once you re-render the files and compress them down. Movie maker will do it, although it takes a few decades to get the job done being Single Threaded![]()
What I usually do with Fraps and Warhammer, is just record certain sections, then edit them all together.