www.makemkv.com

Thanks, this actually helped narrow things down quite a bit.

You were right about the USB/bus encryption part.

After completely power-cycling the Pioneer drive, I was finally able to create an encrypted MakeMKV backup that passes XReveal's Content Hash Verifier without any mismatches.

So it looks ...

I have a couple of additional updates since my previous post.

First, I repeated the encrypted backup experiment several times.

Initially, every encrypted MakeMKV backup I created produced widespread Content Hash Verifier mismatches across entire M2TS files.

However, after completely power-cycling ...

Thank you for the detailed suggestions. I have now tested as much of your proposed procedure as I could.

1. MakeMKV encrypted backup


I created a new MakeMKV backup with “Decrypt video files” disabled.

The backup was created successfully and contains the original AACS structure. It is detected as ...

I tried that.

I tested both the original `00543.m2ts` from the disc and the `00543.m2ts` from the MakeMKV decrypted backup.

Neither FFmpeg nor MKVToolNix recognize either file as a valid stream, and VLC does not play them directly.

However, the main issue remains that MakeMKV also fails to ...

I also performed some additional tests that may help narrow this down.
I tested the decrypted BDMV backups created on both macOS and Windows with several older MakeMKV Mac versions (v12.0, v17.7, v16.7, v15.4)
The result is identical with every version.

The decrypted BDMV still fails during ...

Thank you for the suggestions.

I performed another test today, this time on a completely different machine.
I repeated the entire process on a Windows PC, using the same UHD disc.

Unfortunately, I get exactly the same behavior : the same hash check failures and the same failure during analysis.
I ...

Thanks for the suggestion.

Following your message, I performed some additional tests.

First, I created a decrypted backup using MakeMKV with the Decrypt video files option enabled.

The backup completed successfully.

However, when I load the resulting BDMV folder back into MakeMKV, I get exactly ...

I don't know if Mike is still following this thread, but I have one question.

Since the disc can be read completely (verified with GNU ddrescue: 0 read errors, 0 bad sectors) and it plays perfectly on a standalone UHD player, would it be possible to disable or bypass the M2TS content hash ...

I think I may have found an issue with the UHD disc **ET40TH_UPK5** (French release, EAN 3701432065694). It looks related to the issue discussed in this thread.

**Environment**

* MakeMKV 1.18.4
* macOS
* Pioneer BDR-UD04 1.14 (LibreDrive)

To exclude a defective disc, I first created a complete ...

Thank you for your reply. Unfortunately, I only have access to this Verbatim 43888 drive, no other UHD-capable drives.

Thanks for your help!

Hi,

Here's the dump for the new "Les Choristes" UHD Blu-ray from the France

MKB20_v82_BLU-RAY_UHD_10DC.tgz

https://drive.google.com/file/d/1JuR9aX ... share_link

Thanks !

Yes, I did that yesterday, but now I remember with the TGZ containing the AACS/MKB_RO.inf file that had the wrong weight.
I'm sending one back with the replaced file in it.

Thank you very much for your reply!
I have just checked again and LibreDrive is indeed "Enable"
So I'm going to wait patiently and update the keydb.cfg file from time to time until my Blu-ray is added.
Thank you again for your help!

Here is the zipped file.

Unfortunately, I don't have any other drives than the Verbatim 43888.
I didn't think it could be the problem, but following your last answer, I just saw on the forum that I might need to flash it, is that right?

Hello,
I submit this file, because even after updating the keydb.cfg file in the MakeMKV folder.
MakeMKV still cannot decrypt the Blu-ray.