This excerpt taken from the ATVI 10-K filed Jun 14, 2007.
7.2 Designated Manufacturing Facilities. To insure compatibility of PlayStation 3 Format Discs with the System, consistent quality of the Disc Products and incorporation of anti-piracy security measures, the SCE Company shall designate and license a Designated Manufacturing Facility or Facilities to reproduce PlayStation 3 Format Discs. Publisher shall purchase [***] of its requirements for PlayStation 3 Format Discs, including demonstration discs, from such Designated Manufacturing Facility. Any Designated Manufacturing Facility shall be entitled to enforce the terms of this Agreement.