noun
imported disc; imported record; imported media
Refers to physical media such as CDs, records, Blu-rays, or game discs that are imported from abroad, often distinguished from domestic releases.
このアルバムの輸入盤は日本盤より安い。
The imported version of this album is cheaper than the Japanese release.
輸入盤のゲームは日本語に対応していないことがある。
Imported games sometimes do not support Japanese.
国内盤 is another term for a domestic release, often used interchangeably with 日本盤.
Compound of 輸入 (import) and 盤 (disc/record). The term likely arose with the import of vinyl records and later extended to other disc-based media.