I'm running zorin OS lite and when I try to play a DVD parole media player opens and says I need the mpeg-2 demuxer when I click install it gives me an error massage and says "No available [plugin installer"
I'm not familiar with parole, but the following commands will install media codecs. Copy and paste them in the terminal ,run one at a time and let them complete.You'll be prompted to enter your password which will be invisible when you type it into the terminal
sudo apt install ubuntu-restricted-extras
sudo apt install libdvdread7
Try what @Winged1 said or download VLC Media Player.