If your Xbox 360 plays some discs and doesn’t play some by showing ‘Disc Unreadable’ or ‘Open Tray’ or ‘Dirty disc’ error, this is the tutorial you are looking for:
1) Check your ‘unplayable discs’ for disc errors. Click here for the tutorial.
2) If they they don’t have write errors. Try a pot tweak. Click here for the tutorial.
3) If you still can’t get it working. Try replacing the Laser, but you can move on to the next step because this is not very easy. I won’t recommend it.
4) If you are still unsucessful. Replace the drive. Click here for the tutorial.
