I was reading about how you can install games on your Xbox 360 today. And that the 360 will run the game off the system and not off the disk, but still needs the disk in the tray to verify you own the game.
So when I was installing one of my games(GTA4) and I noticed it kept pausing at 39% and then would say the disk was scratched and to take it out and try again, etc. I tryed it a few times and the same thing happened. When I tryed just playing the game off the disk, it loads up but as soon as I walk out of "Niko's apartment/hangout/loading point", it then pops up and says that the disc is scratched, etc etc. I checked my GTA4 disk and it has a big ring-like scratch around it, clearly caused by the 360. This is the first time my 360 has scratched one of my games. I bought this game in June and its worked fine until now. I never move my system with discs in it or play games with the 360 vertically. I'm puzzled by why the disc got struggled but thats not my question.
My question is, could I rent/borrow a working copy of GTA4, then install it on my 360 and then still use my scratched disk to run it? In theory, this should work. Because a working copy of the game is installed on my 360 and runs off the system instead of the game being run off the disk. So after I return the working copy back to wherever/whoever I got it from, the 360 will still want a GTA4 disc to verify I own the game, so my scratched disk should still work because its not running the game off the disc, but off the system. And only needs the disc for verification, right?
Anyone have any thoughts on this?