I downloaded Crank in HD for my 360. I want to play it at a friends house who also has one. I'm guessing I have to take my console over there, but could I just take my hard drive and swap out with his? Also, is there a way to save MP3's from an MP3 player to the hard drive? I've got a few songs ripped and I stream from my pc, but I'd like to be able to save from my pc or mp3 player if at all possible.