I need to watch a DVD for school, but when I try to watch it in VLC , I get this error:

Playback failure: VLC cannot set the DVD's title. It possibly cannot decrypt the entire disc. 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:///media/curticegough/PHYSICAL_DVD_3/VIDEO_TS/'. Check the log for details.

If I open it in nautiuls , I get this error:

This location could not be displayed Sorry, could not display all the contents of “PHYSICAL_DVD_3”: Error when getting information for file '/media/curticegough/PHYSICAL_DVD_3/VIDEO_TS.IFO': Input/output error

I already know about DRM and what it is, but I don't know how to get around it.

I also already have all of the usual codecs, including libdvdnav4 , libdvdread4 , gstreamer1.0-plugins-bad , gstreamer1.0-plugins-ugly , dvdcss2 , ubuntu-restricted-extras and libdvd-pkg .

I also have regionset installed just in case I need to use it for some reason.

How do I play my DVD???