限定版

限定版 – gentei-ban. limited edition or limited item. This refers to items supposedly sold in limited quantities so they may also be labelled special or collectors’ editions. They are more expensive because they include tokuten such as DVDs/BDs with behind the scenes or live concert recordings (audio-only or with video), autographed (サイン入り; sain-iri) items, bromides, keychains and other trinkets, etc.

For CDs, you might see 限定盤 (gentei-ban) instead.