This excerpt taken from the ATVI 10-Q filed Feb 8, 2006.
2.1 In order for a Software Title to qualify for the Xbox 360 Review Disc Program, Publisher must manufactureat least [*] standard FPUs for the European Sales Territory per the Minimum Order Quantity requirements under the Xbox 360 PLA. In such event, Publisher may manufacture and distribute up to [*] Review Disc FPUs of such Software Title (regardless of SKUs or languages). The manufacture of such Review Discs FPUs must take place within a[*] period. Publisher shall be solely responsible for any costs associated with such Review Disc FPUs, including the manufacture and distribution thereof.
2.2 All Marketing Materials for a Review Disc FPU must clearly indicate that such FPU is being distributed on a not for resale basis and Publisher shall submit all such Marketing Materials to Microsoft for its approval in accordance with the requirements set forth in the Xbox 360 PLA. Packaging Materials for Review Disc FPUs shall be in accordance with the requirements set forth for such materials in the Xbox 360 Publisher Guide.
2.3 Publisher shall provide to Microsoft without charge [*] Review Disc FPUs (Microsoft Units) of each Software Title that participates in the Xbox 360 Review Disc Program. The Microsoft Units shall be in addition to the Review Disc FPU quantity amounts required under Section 2.1 above.