hello everyone! I am trying to get cdlc songs for rocksmith on my xbox 360 and wondering if any one has managed to successfully do this. im not sure how to get the cdlc onto my usb drive so rocksmith will load it. any able to help me out with getting this to work?

No matter how hard I search, I just cannot find a great walkthrough for getting the CDLC to my Xbox 360. First off, do you really need to mod your Xbox in order to do it? Second off, can someone please give me a step-by-step walkthrough on how to do it? Thanks.