Playing DVDs in Ubuntu 24.x

If you are seeing errors like

[00007f3538001130] dvdread demux error: Could not open input: No medium found
[00007f3538001130] dvdread demux error: Can't open /dev/sr0 for reading
[00007f3538001130] dvdread demux error: DVDRead cannot open source: /dev/sr0

You need some extra packages:

ubuntu-restricted-extras
libvdpau-va-gl
libdvd-pkg
libdvdcss2

Then any of vlc, mplayer, parole or others should Just Work.