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There was a change to the library names with newer versions which will break tour previous configuration... The makemkv library names are now libmmbd_new.dylib and libmmbd_old.dylib, you choose which one you want to use...

AFAICT, the integration stuff in makemkv doesn't work in mojave.... must be only a catalina thing.... You'd have to follow https://www.makemkv.com/forum/viewtopic.php?f=4&t=7010 to make playing/opening blu ray disks in vlc work. And as @GHender3 said, Mount the disc, File, Open Disc, and Open. B...

What macOs are you using?

Bluray drives: https://eshop.macsales.com/shop/optical-drives/superdrives Software: https://download.videolan.org/libdvdcss/1.4.2/macosx/ http://makemkv.com/download/ https://handbrake.fr/rotation.php?file=HandBrake-1.2.0.dmg&old=true If you want to be able to rip & encode to *.mp4 or *.m4v ...

Ah... So it looks like HB 1.2.0 maybe the last version of HB to work in catalina the way it works in mojave/earlier. I got the same result you did with 1.2.0... I didn't try with 1.2.1...

@swsmith1971 - I made a catalina vm and catalina does something funky.... using ~/lib won't work, so I tried sticking the links in /usr/local/lib where videolan installs libdvdcss... that doesn't work either (libdvdcss works fine though). I have no idea what you have to do to make the links to be fo...

Since you're using makemkv 1.15.1 and handbrake 1.2, open a terminal (Terminal.app) and copy the following, line by line... mkdir ~/lib ln -s /Applications/MakeMKV.app/Contents/lib/libmmbd_new.dylib ~/lib/libaacs.dylib ln -s /Applications/MakeMKV.app/Contents/lib/libmmbd_new.dylib ~/lib/libbdplus.dy...

The libmmbd (from unsigned, unsandboxed, unhardened and otherwise dangerous MakeMKV) still can be used by sandboxed/hardened applications, if it is copied to a proper location. VLC is an example how it works. So, at least in theory, this should work. AFAIK, placing the aliases in /usr/local/lib, th...