Ive recently tried to go back and play Saints Row 3 and Gears of War 3 and im getting open tray and unrecognizable disc errors. I initially thought it was a problem with my hard drive considering it would work without any memory device in the console, but when i switched to a new hard drive I was still getting disc read errors. Ive tried clearing my systems cache and erasing any Saints and Gears related content from my console. Ive uninstalled the latest LIVE update and the game runs perfectly fine, but when I re-install the update, I get disc read errors again. These discs are almost brand new and have no marks or scratches. Most games work fine, but others are all coming up with disc read errors.