This can make matters tricky by that fact that Apple has phased out built-in optical drives from its mac machines, much less Blu-ray player. However, playing Blu-ray disc on macOS requires a Blu-ray player (free or commercial).
While streaming services that can be used on Mac have become a hard-to-replace source of entertainment for millions of Mac users, Blu-ray discs are still beloved by film buffs who like watching older movies.