Ever wondered just how big a 1024x768 15 minute demo at 30fps was, if recorded to an uncompressed .avi?

The answer is 4.1gb.

Ever wondered how long it would take windows to load extended information in Explorer for this size of a file, for just opening the folder said file is in?

The answer is ten minutes on my system.

Ever wondered how long it would take me to decide to start taking smaller clips?

The answer is: after loading the above file six times.