After the launch of Microsoft's Halo 3 there were reports that some customers received scratched discs in their pack due to poor case design. As of now till 31/12/07 Microsoft will replace any damaged Halo 3 LE discs or any Halo 3 Essentials Discs. The offer will expire by the end of this calendar year.
This process has been reported to take approx 2 weeks.

Link:
Terms & Conditions
News source:
Microsoft Disc Replacement Read full story...

More...