It may be new for many people but it is an awesome region-free DVD player for macOS Big Sur, Catalina, Mojave, etc. Free 5KPlayer is one of the best choices. Sometimes Apple DVD Player will not work, so you may have to download a third-party DVD player on Mac. If the auto-play doesn't happen, please tap the Space bar after the DVD is recognized. You simply need to insert a DVD and the DVD Player app will start playing it automatically. How to Play a DVD Using Apple DVD Player on Mac? Older versions of DVD Player won't work on external DVD drives. It lacks a DTS decoder, which means DTS tracks cannot be played through the Mac's built in speakers or analog output. It enforces most restrictive measures of DVD technology, such as DVD region code and user operation prohibition.