noun
Refers to the geographical restriction code used on DVDs, Blu-rays, and similar media to control playback in different regions.
このDVDのリージョンコードは日本向けの2です。
The region code of this DVD is 2, for Japan.
海外で買ったDVDはリージョンコードが
DVDs bought overseas may not play on Japanese players because the region code is different.