There are many ways of stripping DRM protection on Mac, but most of them work fine only for audio files.
Its main function is converting DRM protected files to DRM-free files, this is why when you launch it, you can see an area, where you can drop DRM protected media files, also there is a Button "Add", which helps to add separated files or folders. If you need to get 100% original quality, you choose "Perfect Audio" mode. Also this DRM remover for Mac allows you to shut down your Mac, when converting is finished.