I can put a game disc in the drive and it works fine.
I've successfully used the DVD drive to burn cd's with brasero
I put in a comercial DVD and it doesn't seem to recognize it.
I have installed libdvdcss
papa@MSI-i7-Z:~$ sudo apt install libdvd-pkg
[sudo] password for papa:
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
libdvd-pkg is already the newest version (1.4.3-1-1).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
papa@MSI-i7-Z:~$ sudo dpkg-reconfigure libdvd-pkg
libdvd-pkg: guest package [libdvdcss2/1.4.3-1~local] is already installed.