evox help

[snake2]

ok i have been thinking about getting evox for my xbox but i want to know some stuff about it first
1:will it fit on a cd-rw
2:is there a sertant kind of hard drive i need to replace the one in the xbox with a x-cutter mod
3:can i still watch dvds with it
4:can i still play normal xbox games with it
5:what is the normal size of a xbox game
6:is there any loading if a game is on the hard drive
7:can i shut down evox and go back to the normal xbox screen

thanks to any one that can help