Maybe do an apt search for dvd or bluray packages in the terminal and try the results that seem most likely. I know Linux Mint offers optional codecs for those.
I find these:
xxxxx@xxxxx ~ $ apt search bluray
i libbluray-bdj - Blu-ray Disc Java support library (BD-J li
v libbluray-bdj:i386 -
p libbluray-bin - Blu-ray disc playback support library (too
p libbluray-bin:i386 - Blu-ray disc playback support library (too
p libbluray-dev - Blu-ray disc playback support library (dev
p libbluray-dev:i386 - Blu-ray disc playback support library (dev
p libbluray-doc - Blu-ray disc playback support library (doc
i libbluray1 - Blu-ray disc playback support library (sha
p libbluray1:i386 - Blu-ray disc playback support library (sha