I've got a Blu-ray drive and I'd like to be able to use it to watch movies under Ubuntu.
Please see the following official documentation for Bluray disc playback on Ubuntu:
It is actually possible if you use the media center application called xbmc which can be found here.
After you have installed the package their is a plugin for xbmc to read bluray disks. The instructions are here.
OMGUBUNTU.CO.UK also has a very simple script to get it setup with VLC also which is at the below link.
makemkv is what i use on linux to rip and then play blu-ray discs. It works very well, and it's free at the moment. Makemkv will convert any dvd or blu-ray disc to an mkv file. DVDs rip into files of around 5GB, while bluray disks will give you huge files of 30-40GB. From there, i use handbrake to compress the video (including several audio/subtitle tracks) for viewing on tv/ipad/laptop.
Installation instructions are here: http://www.makemkv.com/forum2/viewtopic.php?f=3&t=224
Blu ray discs are currently unsupported on Linux. There are ways to play them but they require using methods of circumventing DRM and isnt exactly user friendly in the first place.
Look at this for an explanation on how to play the disc
lxBDPlayer player works fine for unencrypted Bluray discs.
They have a .deb installer on their homepage and on sourceforge.
I even mounted an untouched BluRay ISO and opened it with this player.
The player only has some very basic features like start, stop, pause, skip and chapter selection, but it is easy to install and easy to use.
As of Ubuntu 16.04 you can use a 30 day trial of MakeMKV
cd ~/Downloads wget http://www.makemkv.com/download/makemkv-bin-1.9.10.tar.gz wget http://www.makemkv.com/download/makemkv-oss-1.9.10.tar.gz sudo tar -xvzf makemkv-bin-1.9.10.tar.gz sudo tar -xvzf makemkv-oss-1.9.10.tar.gz sudo apt install build-essential pkg-config libc6-dev libssl-dev libexpat1-dev libavcodec-dev libgl1-mesa-dev libqt4-dev -y cd ~/Downloads/makemkv-oss-1.9.10 sudo ./configure sudo make sudo make install cd ~/Downloads/makemkv-bin-1.9.10 sudo make
sudo make install cd makemkv
Open Disc > File > Stream
More detailed instructions here: