The problem of Catalina incompatibility is not only about third-party apps. Insert the DVD into the SuperDrive the DVD Player app should open. Playing a DVD on a Mac that has an integrated optical drive couldn't be easier. Play a DVD through your Mac's optical drive. It’s not missing however, it turns out the DVD Player app has just been relocated to sit alongside some other buried. If regularly use a Mac with an Apple SuperDrive or other DVD player, you may be wondering where the DVD Player app went in macOS Mojave, and perhaps you have arrived at the conclusion that it’s missing since it’s no longer visible in the /Applications folder or Launchpad. Powered with advanced technologies, Leawo Blu-ray Player enables you to play and watch Blu-ray, DVD, ISO, up to 1080P HD videos and audio files on your iMac or MacBook without quality loss. The first free and all-region Blu-ray media player for Mac users to watch HD movies on Mac without any format barrier.
IDVD lets you walk through all the usual DVD creation projects, but also has Magic iDVD. IDVD for Mac is Apple's DVD authoring-and-burning tool, working with internal and many external DVD burners.