For modding information visit XBOX-SCENE
because the have all the newest xbox modding news. However "backing up" 360 games and being able to play them requires you to rip open ur 360 voiding the warranty. On top of it the process isnt as justifiable as the xbox 1 modding because the only purpose is to play "backup" games.
Basically if you dont know what ur doing dont think about trying it, ull just end up with a giant mistake