We're excited to announce that we've fully migrated the Xbox Forums to their new home, here on the Microsoft Community forums!
As of today, going to forums.xbox.com will redirect you here to the Xbox area of the Community forums. We've moved all of your existing threads over so you can continue and start conversations with the new forums experience.
We sincerely appreciate the feedback you have provided over this transition and can't wait for you to check out the new Xbox Forums!
It could be the disc is dirty or has scratches, or it could be a problem with the drive. Give the disc a clean see if that solves it. Also you could install the game to your hard drive which would mean it wouldn't be such a problem. If the problem persists
though I would read through this support topic and maybe contact Microsoft Support.