www.makemkv.com

Mine worked now. I have the double disk (standard bluray and 4K bluray) from Amazon.

As a matter of fact, there is something you can do! :) Mike made a post about it. As a reminder, if a disk key is not known then protected disc will fail to open. MakeMKV will save a disc dump in this case, called "AACS dump". Please send these dumps to svq@makemkv.com . When you try to o...

So I just got my freshly released How to Train You Dragon 3, The Hidden World 4k UHD and obviously since it just released today there are no keys for MakeMKV to use. What do I need to do to help move this process along? I would like to digitize my 4k copy over the standard bluray copy.