DVDs Will Not Play in Ubuntu

[carbonbased]

DVDs will not play with any app., however, all play fine in Linux Mint (dual booting here) with a straight install.

VLC gives me the following error message:

Playback failure:
VLC cannot set the DVD's title. It possibly cannot decrypt the entire disc.
Your input can't be opened:
VLC is unable to open the MRL 'dvd:///dev/sr0'. Check the log for details.
Playback failure:
VLC cannot set the DVD's title. It possibly cannot decrypt the entire disc.
Your input can't be opened:
VLC is unable to open the MRL 'dvd:///dev/sr0'. Check the log for details.
=============================================

Again, I'm not trying to rip or decrypt anything, just play. All DVD & players give me the same results in Ubuntu, but all play fine in Linux Mint.

What's going on?

[Soulcage]

You have to add the medibuntu repo from here: https://help.ubuntu.com/community/Medibuntu
Then you paste "sudo apt-get install libdvdcss2" in a terminal.

[carbonbased]

You have to add the medibuntu repo from here: https://help.ubuntu.com/community/Medibuntu
Then you paste "sudo apt-get install libdvdcss2" in a terminal.

Did exactly the above, plus went to Medibuntu help page and followed the install commands there too. Still not playing, VLC returns this error message now:

p, li { white-space: pre-wrap; } Playback failure:
VLC cannot set the DVD's title. It possibly cannot decrypt the entire disc.
Your input can't be opened:
VLC is unable to open the MRL 'dvd:///dev/sr0'. Check the log for details.
=============================================

Solved. Had to go back to Synaptic PM and jerk VLC out by the roots, reload the repository indexes, and reinstall everything.

Thanks for the help.