Unable to Decrypt AACS v82 Blu-ray Disc

[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 (225.83 KiB) Viewed 1186 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!

[MartyMcNuts]

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.

[keydb_helper]

...
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)

[lgwgid626]

...
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!

[mmdesunida]

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!