www.makemkv.com

Yes, I tried it a few hours ago and still not working. I downloaded and added the KEYDB.cfg keys and no dice yet.

Just got the US Scream Factory UHD Humanoids From the Deep 4K and it won't rip. Submitted dump by email.
MKB20_v77_Humanoids_From_the_Deep_4FC2.tgz
Thanx.

I was about to say the Unrated cut is also on the disc if this is the Arrow 4K. I own it too.

I was just able to rip this disc already. Thanx lot!

Just got the US Shout Factory UHD Slumber Party Massacre 1 & 2 4K and it won't rip. Submitted dump by email. Thanx.