Re: Midway 2019 4K (new BD-J protection?)
Posted: Thu May 21, 2020 9:29 pm
MakeMKV support forum
https://forum.makemkv.com/forum/
Which software patches the JARs? Not sure if it's against forum rules to say. If so can you PM me? Thanks!SamuriHL wrote: ↑Sun May 17, 2020 11:09 pmNo, there isn't a publicly known method for doing so afaik. It requires patching the jar files so they pass the protection checks and return the correct playlist. The protection works by running checks against the disc, one of which is "is there AACS protection?". The moment you remove the AACS protection, you change the answer to that question and change the outcome. Think of this protection like a choose your own adventure where if you pick the wrong path it leads you to the wrong answer. I'm VASTLY oversimplifying this whole thing so don't take this as a technical analysis of the protection. I just wanted to demonstrate what the protection is doing to identify the correct playlist on an untouched disc vs why it fails on a backup. To patch the jars there's a whole unknown process some companies use which, again, is not public knowledge. Incidentally, this is one of the reasons I choose to own more than one backup product. I don't find that one size fits all.