Microsoft is aware and has admitted that the Halo 3 Limited Edition game disc are being scratched due to the disc coming off of its latch. Microsoft has offered to replace the discs free of charge under its disc replacement program (they usually charge you for this). The program will cover the Halo 3 LE game disc at no charge until the end of 2007.

Xbox Disc Replacement Program

If, for any reason, you have a damaged Microsoft® Xbox 360™ disc and like to replace it, please review the information below:

THIS PROGRAM IS GOOD ONLY FOR XBOX 360 CONSOLE OWNERS IN COUNTRIES WHERE XBOX 360 IS SOLD AT AUTHORIZED RETAIL LOCATIONS.

NOTE: This program covers the Halo 3 Limited Edition Game Disc and Essentials Disc at no charge through 12/31/07.

This program only applies to games where Microsoft is the publisher, and is subject to availability. To check and see if your game is available for replacement, please review which Microsoft products currently fall under this program here.

You will need to print and complete the program form.

For additional terms and conditions on this policy, please review the Terms and Conditions.

Another option would be to purchase the Halo 3 Limited Edition and open up the package in front of the cashier before you walk out the store to ensure that the disc is not scratched.

Source: Xbox