>1. Does this disc have protect?
I have no idea how to check
>2. How about other PS4 Kiosk discs (if you have)?
Same situation. I have 3 kiosk discs and more coming.
>3. And how about the result of the other blu-ray drive (if you have)?
I have a LITE-ON IHBS112 which is listed as PS4 compatible, this is the only BD-Drive I have.
Here's a file in one of the disc root which seems to be a catalog of the discs contents (not sure if it's useful info): https://pastebin.com/CbwLr4UF
Note: I bought a retail disc on ebay to confirm I can get reliable checksums with that, will help us narrow down the issue.