I recently ordered this title to put my new Atmos setup through it's paces. Thanks @George_W_K for the recommendation. 
When I tried playing the UHD disc I received the below message. The only component in my system that is not HDCP 2.2 compatible is my projector [correctly identified as "TV" in the message] but I have several other UHD titles released after Deepwater which never complain about it and play without incident.
Fortunately I ordered the two-disc set and so I was able to just pop in the standard Blu-Ray, but I thought 4K discs were supposed to be backwards compatible.
When I tried playing the UHD disc I received the below message. The only component in my system that is not HDCP 2.2 compatible is my projector [correctly identified as "TV" in the message] but I have several other UHD titles released after Deepwater which never complain about it and play without incident.
Fortunately I ordered the two-disc set and so I was able to just pop in the standard Blu-Ray, but I thought 4K discs were supposed to be backwards compatible.
