libdvdcss

DVD video discs are typically encrypted with the Content Scrambling System (CSS). The libdvdcss library created by VLC is needed to play DVD discs on Linux. If this library is not available, players like VLC and rippers like Handbrake cannot work with such DVD discs and will fail silently.

To install libdvdcss on Ubuntu:

$ sudo apt install libdvd-pkg
$ sudo dpkg-reconfigure libdvd-pkg

Tried with: Ubuntu 22.04