www.makemkv.com

Attempting to rip Flow (2024) Criterion UHD produced an AACS dump file. I did not submit it because it seems that it exists in KeyDB from forum threads.

Running Syncronize then Validate on the disc with KeyDB Helper 1.0.2.1 produced:

Validation failed - VUK/UnitKeys are INVALID!!!!!!!
Please report this in the Doom9 forum and attach the logfile.

The only log file I could find was KeyDB_Helper -> FindVUK -> log -> 2026-02-12_FindVUK.txt

Which ends like:

2026-02-12 22:51:42 # 3246565 # bluray_aacs / BRAACS_ValidateUnitKeys / Potentially invalid UnitKey >7ECE838453E2A4CE59EE87B834CAD97A<
2026-02-12 22:51:42 # 3246565 # findvuk_validate / _GenericCallback / Potentially invalid UnitKey >7ECE838453E2A4CE59EE87B834CAD97A<
2026-02-12 22:51:42 # 3246565 # bluray_aacs / BRAACS_ValidateUnitKeys / Unfortunately no candidate to get a correct unit key >7ECE838453E2A4CE59EE87B834CAD97A<
2026-02-12 22:51:42 # 3246565 # findvuk_validate / _GenericCallback / Unfortunately no candidate to get a correct unit key >7ECE838453E2A4CE59EE87B834CAD97A<
2026-02-12 22:51:42 # 3246570 # [W] bluray_aacs / BRAACS_ValidateUnitKeys / There are still 7 files that cannot be decoded with the provided unit keys!
2026-02-12 22:51:42 # 3246570 # [W] findvuk_validate / _GenericCallback / There are still 7 files that cannot be decoded with the provided unit keys!
2026-02-12 22:51:42 # 3246575 # [W] findvuk_validate / _Validate / Validation failed - VUK/UnitKeys are INVALID!!!!!!!
2026-02-12 22:51:42 # 3246580 # [W] findvuk_validate / _Validate / Please report this in the Doom9 forum and attach the logfile!
2026-02-12 22:51:42 # 3246583 # findvuk_validate / FVVAL_Mode_FindVUK / Finished with result >-2<

***
After some searching I'm not sure what I should do in this situation.

liels wrote: ↑

Fri Feb 13, 2026 8:18 am

Attempting to rip Flow (2024) Criterion UHD produced an AACS dump file. I did not submit it because it seems that it exists in KeyDB from forum threads.

Running Syncronize then Validate on the disc with KeyDB Helper 1.0.2.1 produced:

Validation failed - VUK/UnitKeys are INVALID!!!!!!!
Please report this in the Doom9 forum and attach the logfile.

Is this your disk Id? Because this entry has already been validated, which suggests that the reason you cannot validate your own disk is because you have not managed to disable bus encryption.

After the Sync download completed:

2026-02-12 21:57:21 # 474837 # FindVUK_Main / DownloadFile / Downloading OnlineDB - Progress: 99.97% - 20.88MB/20.88MB - Speed 65.54 KB/s
2026-02-12 21:57:22 # 475338 # FindVUK_Main / DownloadFile / Received a HTTP 200 - save response now
2026-02-12 21:57:22 # 475452 # FindVUK_Main / DownloadFile / Finished download of OnlineDB - received 20.88MB in 7:54 minutes
2026-02-12 21:57:22 # 475452 # FindVUK_Main / DownloadFile / Return result >1<

KeyDB helper did indeed report that is DiscId:

21:57:39 - AACS folder on disc is reachable - Validate is possible
21:57:45 - VolumeName >FLOW UHD<
21:57:45 - DiscId >ED73C606C9D664B66C6838BF7507D7BBA10CB590< (2025-07-15)
21:57:45 - DiscType >UHD<
21:57:45 - MKB Revision >82<

...

The bus was encrypted but But KeyDB helper through MakeMKV reports successfully disabling BusEncryption

21:57:45 - BusEncryption enabled => either ReadDataKey or disabling of BusEncryption required
-------------------------------------------------------------------------------
21:57:45 - External tool to disable bus encryption defined >"C:\Program Files (x86)\MakeMKV\makemkvcon64.exe" info dev:$DRIVE$ <
21:59:02 - External tool successfully disabled BusEncryption!
-------------------------------------------------------------------------------
21:59:02 - --- PART 2 --- VALIDATE VUK/UNITKEYS ---
-------------------------------------------------------------------------------
22:16:27 - Drive is detected as 'REAL BLURAY' drive
22:16:27 - M2TS files found >7<
22:51:42 - Potentially invalid UnitKey >7ECE838453E2A4CE59EE87B834CAD97A<
22:51:42 - Unfortunately no candidate to get a correct unit key >7ECE838453E2A4CE59EE87B834CAD97A<
22:51:42 - There are still 7 files that cannot be decoded with the provided unit keys!
22:51:42 - Validation failed - VUK/UnitKeys are INVALID!!!!!!!
22:51:42 - Please report this in the Doom9 forum and attach the logfile!

It's a FindVUK problem which it tells you what to do. It has nothing to do at all with KeyDB Helper. That's simply calling FindVUK validate. The problem would happen if you called it directly itself. It's clear about reporting the issue on doom9.

The log file to attach to Doom9 is:
KeyDB_Helper_1.0.2.1 -> FindVUK -> log -> Date_FindVUK.txt

?

Post that log it to this forum/thread?

https://forum.doom9.org/showthread.php?t=172472&page=53

?

Yup.