$ sudo apt-get update
$ sudo apt-get install libdvd-pkg 

libdvd-pkg is installed in your system.

Make ensure the libdvd-pkg package were installed using the commands given below,

$ sudo dpkg-query -l | grep libdvd-pkg *

You will get with libdvd-pkg package name, version, architecture and description in a table

libdvd-pkg package basic information: