 In addition to a digitally restored version of the film in anamorphic format with removable English subtitles, extras on this disc include the film's original theatrical trailer and a biography of director Masaru Konuma.The major special feature of this disc is director Hideo Nakata's 2001 documentary on Konuma entitled "Sadistic and Masochistic".At 91 minutes, this extra is longer than the main film on the disc.