MakeMKV is great program to decrypt BR discs. It's $50 dollars but worth every penny, there is a free trial available. BR rips are about 25-30 GBs each so make sure you have enough HD space.
MacBluRayRipper also has a demo but I wasn't able to get it to work.
MacBluRayRipper also has a demo but I wasn't able to get it to work.