Xbox Gameplay Recorder..?

Hey guys!

Soooo I'm not sure if this is in the right coding section, but I kinda posted it here 'cause when I looked it was the coding section with the most people looking sooooo :P
I actually have two requests;
1. I would like to request a program that can be put in the Xbox 360 to record gameplay that is saved to the hard drive after finished.. y'know, a program that's NOT illegal.. is it possible to make? What I'm thinking is something kind of like CamStudio, but for the Xbox 360.. and with much more compatability :P (As in it can handle games like Call of Duty Black Ops, Modern Warfare 2, etc. etc...
2. Compiled version of Turret Champion? :3

Thanks if you can do one or both of them, and still thanks if you can at least tell me that the Xbox 360 recorder program is impossible. :P

bai,
~Gunz5456 A.K.A. Coover55