Okay, I have burned myself a copy of World at War, that I modded myself. Prior to me deciding to iso mod, I did have the original installed, but I deleted it. I can play the game from the disk, by hotswapping.. And when I click install to HDD, my cd drive makes like a confused sound from moving. Then it speeds up the disk like it's going to work, then it slows down to about half speed, then back to normal speed and gives me the error, "Can't read this disk. It may be scratched or dirty. Clean it and try again".. It has made it to 1% ONCE! However, when I try to hotswap from the modded to the original game, it will install. I swap the two disks in like 2 seconds or less, so I don't see that being the problem. My 360 is an Elite, and I have had it for like 2 years. The drive specs are as follows: * Philips & Lite-on Digital * Manufactured in May, 2008 * Model Number: DG-16D2S It is NOT flashed. My 360 is NOT banned. I HAVE cleared my cache several times. I have tried it with 3 different copies, all burnt at 2.0x, but clearly the disk is okay, because I can play modded zombies off of the disk. I don't know what else to do, please help Any further questions, just ask.