Struggling to open UHD discs on BU40N

[MartyMcNuts]

All,

Thanks for the responses as they helped me get much further along is the process. As you can see the drive was successfully patched but now I am receiving errors. See below




Any support would be greatly appreciated. I'm really hoping it's not a hardware issue as this drive is barely a week old.

Clean the disc.

[mocha1970]

Lol that was literally what I did five minutes after posting this and it worked perfectly. But thanks again for all being so responsive, this forum is incredibly useful and I have been ripping like a mad fool ever since.

[brunobrodbecker1]

Hi, I'm after some help as I'm new to this and would like to start ripping my 4k UHD disc collection to use for plex.

Firstly, MakeMKV should almost certainly know how to decrypt this disk already. The reason you are struggling is probably because your drive cannot enable LibreDrive, and so bus encryption is still enabled.

Has MakeMKV been able to connect to the Internet to download both the LibreDrive microcode and the hashed keys database?

There should be a file called _private_data.tar in the same directory where your TGZ dump file was created. (This is MakeMKV's "data directory", i.e. C:\Users\johoe\MakeMKV in your case.) Check whether this _private_data.tar contains a file like:

Code: Select all

sdf_000000a3.bin

If it doesn't then you can download it manually from http://www.makemkv.com/svq/sdf.bin. Copy this file into MakeMKV's data directory and restart MakeMKV.

As an aside, the AACS/MKB_RO.inf file inside your TGZ dump file has been truncated to only 56 bytes, which makes it useless to anyone trying to add your disk to the public KEYDB database. Could you compress the AACS/MKB_RO.inf file from your physical UHD disk, upload it into (say) Google Drive or OneDrive, and then reply here with a public download link please?

Thank you so much for the help. Adding the sdf file to MakeMKV's data directory did the trick for me.
I also had to use "makemkvcon info" command with UHD Bluray inserted.
Now my linux system is able to deactivate bus encryption, MakeMKV and iso creation in DDRescue is working normally.
I was constantly struggling for hours and hours to get the bus encryption disabled. The result was, that I wasn't able to decrypt any video's from the created ISO. I'm using Asus BW-16D1HT with Firmware 3.10.

[gwhitcombe71]

Adding the sdf file to MakeMKV's data directory did the trick for me. I also had to use "makemkvcon info" command with UHD Bluray inserted.

brunobrodbecker1, glad that sdf trick sorted you mate, that bus encryption nonsense had me scratching my head for a good while too... worth mentioning for anyone else reading, I had the same Asus drive play up until I ran it fully through makemkvcon rather than the GUI, seemed more reliable at actually flipping that encryption off. Proper good when it finally clicks