Rage takes 21-22GB of disc space when installed on the Xbox 360

[D-Joe]

http://www.vg247.com/2011/08/08/carmack-rage-360-install-to-be-22gb/
>“On the 360 we don’t have a partial install option; it’s all or nothing, which is kind of unfortunate,”

is that mean this game will be like Forza 3/4(you don't need to change disc if you fully installed)