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It works now, thank you so much! Really appreciate your help!

Hi, thanks for your reply! I have MakeMKV 1.18.4 and downloaded the latest KEYDB.cfg today, but it still doesn't work. I'm still getting "volume key unknown". My variant is D5BC – could it be that this specific variant is not yet in the database?
I already sent the TGZ dump to svq@makemkv.com about ...

Hi, I have the German 4K Steelbook of Avatar: Fire and Ash. My disc variant is D5BC, which seems to be different from the BB78 variant already posted here. Volume key is still unknown.
TGZ uploaded here: https://drive.google.com/file/d/13w-uIMbkgbhL4dtMBEG48ETCpmyXiTRO/view?usp=sharing
Hope this ...