夏日大作戰
"Summer Wars" was released in Japan on DVD and Blu-ray on March 3, 2010. The DVD version contains a 16-page booklet, OZ stickers, previews, interviews with the film's cast (Ryūnosuke Kamiki, Nanami Sakuraba, Sumiko Fuji, Mitsuki Tanimura and Ayumu Saitō) and an interview with director Mamoru Hosoda, while first press limited edition of the Blu-ray also included the same features, but also added hanafuda cards, an art book, and a film bookmark, and a making-of documentary. These releases were undertaken by Vap. In its first week of release the film became the top selling anime Blu-ray in Japan, with an estimated 54,000 copies sold and surpassed the previous record holder '. As of 2010, the film is the second highest Japanese Blu-ray debut overall, following "Michael Jackson's This Is It". Based on pre-orders "Summer Wars" was expected to be eclipsed in sales by ' on its release in May. "Summer Wars" also topped the Oricon Animation DVD charts with 55,375 copies sold in its first week. The Japanese Blu-ray release of "Summer Wars" was nominated for a Digital Entertainment Group of Japan (DEG Japan) Award for Best Interactivity.