I'm trying to play a DVD movie from netflix and Movie Player can't read it. I installed VLC, it wouldn't work either.
marked as duplicate by Jorge Castro, Eliah Kagan, jokerdino♦, John S Gruber, maythux Oct 5 '12 at 7:37
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
You need to install the libdvdcss2 package in order to play dvds - the package is not included by default because DRM is involved and Canonical don't want to get their hands dirty.
Follow this guide: