Blu-ray without MakeMKV?

I've spent all day trying to find a way to rip a commerical Blu-ray disc to my MacBook Pro without using the $50 MakeMKV. Is anyone aware of any (free) alternatives? I'm using an external Plextor PX-B310U.

Really? The version I have says that it will expire after thirty days unless I purchase an activation code.