Originally, region 1 releases were marketed in hardboard carton packages, whereas the region 2 releases were packaged in hard plastic cases. Japan marketed both versions, The European region 2 hard plastic cases as "Special Premium Boxes", limited to 5,000 copies per season. Noteworthy is that while some of the special features in the region 1 edition were only available through promotional actions (often on a separate disc), all of these were standard included in the region 2 edition.