Abbreviation for ブルーレイディスク (Blu-ray Disc). Used in product names, media formats, and technical contexts.
See also: ブルーレイディスク
This movie is available on Blu-ray Disc.
I burned the recorded show onto a BD.
I bought a Blu-ray Disc player.
That movie looks better when you watch it on BD.
I bought a new BD player.
Thin, flat objects like optical discs such as BD are typically counted with 枚 (mai).
Abbreviation of ブルーレイディスク (Blu-ray Disc), from the English 'Blu-ray Disc'.