You may think that Apple’s DVD Player app disappeared in macOS Mojave. It hasn’t, but Apple apparently wants you to think it has, even though the software has been upgraded to 64-bit.
You can find DVD Player by going to System > LibraryCoreServices/ > Applications if you wish. However, the easiest way is to use Spotlight. Click the little Spotlight icon in the upper right corner of your Mac’s screen. Search for “DVD Player, and the app’s icon should appear at the top of the Top Hits. Double click on the icon, and the app will launch.
