Hey, a video showing you how to download and burn xbox 360 games. Download them following instructions on the site at the link above and then burn them to DVD+R DL discs and play the backup games on your system as if they were store bought games.
NO mod chips were needed for this at all.
Of course you can also play on XBOX Live - the site shows you how to stealth patch your games that disallows XBOX Live from telling what kind of disc you're playing from.
If you want to start downloading and burning all your games to play on your XBOX, what are you waiting for? Just visit the site above and you'll be able to do it.