Because many of these labels, including Shibuya Music, eventually ceased production or changed focus, original physical copies of CPSKY-055 are difficult to find. Today, they are primarily traded on Japanese second-hand specialty sites like Suruga-ya or Culture Station , where they can command high prices from collectors of Japanese media history. Cultural Context

The "CPSKY" prefix is a common identifier for DVDs produced by Shibuya Music, a label that specialized in the "junior idol" or "U15" (under 15) genre during the mid-to-late 2000s. These releases typically featured young models in various themed photo shoots, often wearing swimwear or casual school attire.

* アテナ音楽出版 (15) * コアマガジン (6) * オークラ出版 (3) * 渋谷ミュージック (3) * コスミック出版 (2) * サイバーピクチャーズ (2) * Shibuya Music (1) * ジーウォーク (1)

The keyword refers to a specific entry in a niche series of Japanese idol media, specifically a gravure (image) DVD featuring the young model Natsumi Momose .