www.makemkv.com

MakeMKV support forum
https://forum.makemkv.com/forum/

Unable to Decrypt AACS v82 Blu-ray Disc

https://forum.makemkv.com/forum/viewtopic.php?f=8&t=37375

Page 1 of 1

Unable to Decrypt AACS v82 Blu-ray Disc

Posted: Sun Mar 23, 2025 9:23 am
by lgwgid626
Hi everyone,

I’m trying to decrypt a Blu-ray disc using MakeMKV, but I keep getting the error:
“This disc uses a newer version of AACS protection”
followed by:
“The volume key is unknown for this disc – video can’t be decrypted.”

Here's what I've tried so far without success:
  • Downloaded the latest keydb.cfg (confirmed my disc isn't listed)
  • Used FindVUK along with DvDFab to find the VUK
    FindVUK失败.png
    FindVUK失败.png (225.83 KiB) Viewed 3750 times
I created two different dump files (attached for reference):
  • MKB_v82_Morfonica_2nd_Album「Polyphony」【Blu-ray付生産限定盤】_3962.tgz: Generated by opening the disc directly in MakeMKV.
  • MKB_v82_BRMM_10891BD_3962.tgz: Result of attempting a backup/decryption in MakeMKV (failed).
And here's the output from MakeMKV:

Code: Select all

MakeMKV v1.17.9 win(x64-release) started
Using direct disc access mode
Loaded content hash table, will verify integrity of M2TS files.
This disc uses newer version of AACS protection. Please let us know about it by visiting http://www.makemkv.com/a/?9l+2i9tBF2TbgQ...
Saved AACS dump file as C:\Users\USERNAME/.MakeMKV/MKB_v82_Morfonica_2nd_Album「Polyphony」【Blu-ray付生産限定盤】_3962.tgz
The volume key is unknown for this disc - video can't be decrypted
Failed to open disc
Backing up disc into folder "C:/Video/backup/BRMM_10891BD"
This disc uses newer version of AACS protection. Please let us know about it by visiting http://www.makemkv.com/a/?IcKNw9VyFuNU0d...
Saved AACS dump file as C:\Users\USERNAME/.MakeMKV/MKB_v82_BRMM_10891BD_3962.tgz
The volume key is unknown for this disc - video can't be decrypted
Backup failed
Drive information and disk information:

Code: Select all

Drive Information
OS device name: K:
Current profile: BD-ROM
Manufacturer: MATSHITA
Product: UJ260
Revision: 1.01
Serial number: WM09 344367
Bus encryption flags: 1B
Highest AACS version: 82

Disc Information
Label: BRMM_10891BD
Timestamp: 2025-02-10 14:56:31
Protection: AACS v82
Data capacity: 21.98 Gb
Disc type: BD-ROM
Number of layers: 1
Channel bit length: 74,5 nm (25.0 GB max. per layer)
Any guidance would be greatly appreciated! I'm happy to provide additional details if needed.

Thanks in advance!

Re: Unable to Decrypt AACS v82 Blu-ray Disc

Posted: Mon Mar 24, 2025 1:55 am
by MartyMcNuts
lgwgid626 wrote: ↑
Sun Mar 23, 2025 9:23 am
 Hi everyone,

I’m trying to decrypt a Blu-ray disc using MakeMKV, but I keep getting the error:
“This disc uses a newer version of AACS protection”
followed by:
“The volume key is unknown for this disc – video can’t be decrypted.”

Here's what I've tried so far without success:
  • Downloaded the latest keydb.cfg (confirmed my disc isn't listed)
  • Used FindVUK along with DvDFab to find the VUK
    FindVUK失败.png
I created two different dump files (attached for reference):
  • MKB_v82_Morfonica_2nd_Album「Polyphony」【Blu-ray付生産限定盤】_3962.tgz: Generated by opening the disc directly in MakeMKV.
  • MKB_v82_BRMM_10891BD_3962.tgz: Result of attempting a backup/decryption in MakeMKV (failed).
And here's the output from MakeMKV:

Code: Select all

MakeMKV v1.17.9 win(x64-release) started
Using direct disc access mode
Loaded content hash table, will verify integrity of M2TS files.
This disc uses newer version of AACS protection. Please let us know about it by visiting http://www.makemkv.com/a/?9l+2i9tBF2TbgQ...
Saved AACS dump file as C:\Users\USERNAME/.MakeMKV/MKB_v82_Morfonica_2nd_Album「Polyphony」【Blu-ray付生産限定盤】_3962.tgz
The volume key is unknown for this disc - video can't be decrypted
Failed to open disc
Backing up disc into folder "C:/Video/backup/BRMM_10891BD"
This disc uses newer version of AACS protection. Please let us know about it by visiting http://www.makemkv.com/a/?IcKNw9VyFuNU0d...
Saved AACS dump file as C:\Users\USERNAME/.MakeMKV/MKB_v82_BRMM_10891BD_3962.tgz
The volume key is unknown for this disc - video can't be decrypted
Backup failed
Drive information and disk information:

Code: Select all

Drive Information
OS device name: K:
Current profile: BD-ROM
Manufacturer: MATSHITA
Product: UJ260
Revision: 1.01
Serial number: WM09 344367
Bus encryption flags: 1B
Highest AACS version: 82

Disc Information
Label: BRMM_10891BD
Timestamp: 2025-02-10 14:56:31
Protection: AACS v82
Data capacity: 21.98 Gb
Disc type: BD-ROM
Number of layers: 1
Channel bit length: 74,5 nm (25.0 GB max. per layer)
Any guidance would be greatly appreciated! I'm happy to provide additional details if needed.

Thanks in advance!
That's cause the software can't handle AACS v82 yet. You will just have to wait for a software update.

Re: Unable to Decrypt AACS v82 Blu-ray Disc

Posted: Mon Mar 24, 2025 2:50 am
by keydb_helper
lgwgid626 wrote: ↑
Sun Mar 23, 2025 9:23 am
 ...
Here's what I've tried so far without success:
  • Downloaded the latest keydb.cfg (confirmed my disc isn't listed)
  • Used FindVUK along with DvDFab to find the VUK
    FindVUK失败.png
...
Any guidance would be greatly appreciated! I'm happy to provide additional details if needed.

Thanks in advance!
Your disc has recently been added to the public keydb. Re-download the keydb and you will be able to backup/decrypt your disc with MakeMKV without waiting for the next update.

If you are still having trouble after updating your local keydb, please follow my instructions here or use SamuriHL's utility for Windows (Link)

Re: Unable to Decrypt AACS v82 Blu-ray Disc

Posted: Mon Mar 24, 2025 3:19 am
by lgwgid626
keydb_helper wrote: ↑
Mon Mar 24, 2025 2:50 am
lgwgid626 wrote: ↑
Sun Mar 23, 2025 9:23 am
 ...
Here's what I've tried so far without success:
  • Downloaded the latest keydb.cfg (confirmed my disc isn't listed)
  • Used FindVUK along with DvDFab to find the VUK
    FindVUK失败.png
...
Any guidance would be greatly appreciated! I'm happy to provide additional details if needed.

Thanks in advance!
Your disc has recently been added to the public keydb. Re-download the keydb and you will be able to backup/decrypt your disc with MakeMKV without waiting for the next update.

If you are still having trouble after updating your local keydb, please follow my instructions here or use SamuriHL's utility for Windows (Link)
I was able to decrypt the disc using the latest keydb.cfg. Thank you for the help!

Re: Unable to Decrypt AACS v82 Blu-ray Disc

Posted: Mon Mar 24, 2025 5:10 am
by mmdesunida
keydb_helper wrote: ↑
Mon Mar 24, 2025 2:50 am
Your disc has recently been added to the public keydb. Re-download the keydb and you will be able to backup/decrypt your disc with MakeMKV without waiting for the next update.

If you are still having trouble after updating your local keydb, please follow my instructions here or use SamuriHL's utility for Windows (Link)
Sorry to bother everyone in this threads, but could you please give these dumps a chance to be keys to be updated to keydb.cfg?

I reported these to both MakeMKV report line(link after failure) and some kinda e-mail address but still don't know how to report to VUK forum...

Thanks in advance.

+Just checked keys my dump had updated. Thanks for super-speed updates!

Re: Unable to Decrypt AACS v82 Blu-ray Disc

Posted: Thu May 22, 2025 3:52 pm
by JSA_123
Hello,

I'm having the same issue now with a more recent disc.

https://www.blu-ray.com/movies/Jawan-Blu-ray/383753/


I've attached the AACS Dump File. I've already emailed it to svq@makemkv.com, and had no response yet.


Any advice on this matter would be appreciated.

Re: Unable to Decrypt AACS v82 Blu-ray Disc

Posted: Thu May 22, 2025 7:40 pm
by SamuriHL
You won't get a response if that's what you're waiting for. MakeMKV will simply add them to the hashed keys that get downloaded periodically by MakeMKV.

Additionally by providing the dump here in the forum, others can take that dump and add the key to the public KeyDB which can then be downloaded and extracted to the MakeMKV data directory (where the dump file is created).

And finally, I wrote a tool to help automate some of the processes around all this. It can sync the latest KeyDB and automatically copy it to the proper MakeMKV directory. It can also, if you follow the links in my post, handle adding V82 discs to the KeyDB on your own provided you go acquire the proper device key from the links I added and update your keydb.cfg with said device key. My tool is a Windows only tool at this time and can be found here:

viewtopic.php?f=12&t=16883&p=166510#p166510

Remember, my tool does not contain any keys. You will have to provide them in order for it to work.

Re: Unable to Decrypt AACS v82 Blu-ray Disc

Posted: Fri May 23, 2025 12:32 am
by MartyMcNuts
JSA_123 wrote: ↑
Thu May 22, 2025 3:52 pm
 Hello,

I'm having the same issue now with a more recent disc.

https://www.blu-ray.com/movies/Jawan-Blu-ray/383753/


I've attached the AACS Dump File. I've already emailed it to svq@makemkv.com, and had no response yet.


Any advice on this matter would be appreciated.
There is a record for your disc in the latest KeyDB file. Download it and add it to your MakeMKV data folder (where the dumps are saved) and you should be able to rip it.

Re: Unable to Decrypt AACS v82 Blu-ray Disc

Posted: Fri May 23, 2025 1:20 am
by JSA_123
MartyMcNuts wrote: ↑
Fri May 23, 2025 12:32 am
JSA_123 wrote: ↑
Thu May 22, 2025 3:52 pm
 Hello,

I'm having the same issue now with a more recent disc.

https://www.blu-ray.com/movies/Jawan-Blu-ray/383753/


I've attached the AACS Dump File. I've already emailed it to svq@makemkv.com, and had no response yet.


Any advice on this matter would be appreciated.
There is a record for your disc in the latest KeyDB file. Download it and add it to your MakeMKV data folder (where the dumps are saved) and you should be able to rip it.

Managed to rip it after downloading latest KeyDB File.

Thank you.
All times are UTC
Page 1 of 1

Powered by phpBB® Forum Software © phpBB Limited