Handbrake offers the ability to convert copy-protected DVD's (aka "rip") too. It is not able to do this out of the box, but instead, relies on a specific library called libdvdcss. This library is installed by default when you also use VLC media player, but a version compatible with Handbrake is also available for download.
For Mac OSX, an installer was made available to easily install the library and have Handbrake use it, but due to the write-protection of system folders, introduced with macOS High Sierra, this method no longer works. As a result, it became difficult to use Handbrake. Fortunately, there are a number of workarounds and other methods of installing the library, whic ...