(adsbygoogle = window.adsbygoogle || []).push({}); If you're friend has a game that you want you can either:
1. Borrow it and install it onto you're Hard drive and burn it later
2. Go to His/Her house and install to your hard drive.
Simple as that
(I don't know if this works with all games and you need at least 2GB for some games)

For number 2, I thought that you still needed the disk in the 360 for the game to run. DL'ing to your drive only decreased load times I thought.

It does which means your not really getting the game for free since you need the disc...

yah u need the disk still

So this is useless then?

I'm not using a disk and playing king kong

I heard that some games work without the disk like Fifa 09

Some work, some don't.

can somebody tell which games working?

doesnt work dude. you need the game in the disc tray to prove you have the game.