I would like to see the package ubuntu-restricted-extras in the Software Boutique in addition to the Codec package that is already there. The reason I would like to see this is that the "extras" package is vital to being able to play DVDs. I had this problem below that was solved by adding the package--I THINK people still play DVDs on their computer.
Below is the situation and solution that was necessary:
You're most welcome, Anthony. By the way: I've just tested the playback of a Commercial DVD movie that I own in an old "HP Pavilion dv6" laptop computer that still has a DVD drive, and that is running the recently released Ubuntu MATE 23.04 (Lunar Lobster). When I inserted the DVD disk in the drive, I got a dialog box prompting me to open it in Celluloid, but when I accepted that, I got the same error that you got:
Playback was terminated abnormally. Reason: no audio or video data played.
I got that solved by:
1 - Installing the "ubuntu-restricted-extras" package (maybe not necessary?):
sudo apt install ubuntu-restricted-extras
2 - Running
sudo apt install libdvd-pkg
3 - Running
sudo dpkg-reconfigure libdvd-pkg
4 - Reboot.
After I have done that, the DVD movie started playing correctly in "Celluloid".