The Metal Gear Solid: Peace Walker CD Memorial Box is a limited edition collection of official Metal Gear soundtracks released in April 28, 2010 under the catalogue number: B003BLQ0JA, to celebrate the release of Metal Gear Solid: Peace Walker for the PlayStation Portable. The collection was exclusive only to amazon.jp. The collection contains: The Peace Walker Original Soundtrack and Heavens Divide single were not included in the collection.