Failed to open disc

[Matthias]

hello folks

I try to open the UHD disc "The great Barrier Reef" and got a failure message:

MakeMKV v1.14.7 win(x64-release) started
Debug logging enabled, log will be saved as C:\Users\Matthias/MakeMKV_log.txt
Downloading latest SDF to C:\Users\Matthias/.MakeMKV ...
Using direct disc access mode
Using LibreDrive mode (v05 id=AC9E8C239DE5)
Loaded content hash table, will verify integrity of M2TS files.
Saved AACS dump file as C:\Users\Matthias/.MakeMKV/MKB20_v61_GREAT_BARRIER_REEF_698B.tgz
The volume key is unknown for this disc - video can't be decrypted
DEBUG: Code 0 at fQBBRwh9d#b@m]:t:29396092
DEBUG: Code 0 at fQBBRwh9d#b@m]:t:29395172
Failed to open disc

and an other disc "The great Barrier Reef":

Using direct disc access mode
Using LibreDrive mode (v05 id=AC9E8C239DE5)
DEBUG: Code 0 at 5G}%G-K|nT7;|-"W5"cFP3a:213129639
DEBUG: Code 0 at A"Cg9L&u`PaGf(k:121262233
DEBUG: Code 0 at A"Cg9L&u`PaGf(k:213129846
DEBUG: Code 1 at A"Cg9L&u`PaGf(k:29395264
Failed to load content hash table, unable to verify integrity of M2TS files.
DEBUG: Code 0 at 5G}%G-K|nT7;|-"W5"cFP3a:213129639
DEBUG: Code 0 at A"Cg9L&u`PaGf(k:121262233
DEBUG: Code 0 at A"Cg9L&u`PaGf(k:213129846
DEBUG: Code 1 at A"Cg9L&u`PaGf(k:29395264
DEBUG: Code 0 at xdI/Yd%9B :r;oRE7:213133480
Saved AACS dump file as C:\Users\Matthias/.MakeMKV/MKB20_v61_null_6117.tgz
The volume key is unknown for this disc - video can't be decrypted
DEBUG: Code 0 at fQBBRwh9d#b@m]:t:29396092
DEBUG: Code 0 at fQBBRwh9d#b@m]:t:29395172
Failed to open disc

This 2 discs are from a set of 3 discs and the 3rd disc "Antarktis - Leben am Limit" will open correctly.

Any hints?

thx
Matthias

[Woodstock]

You need to send those file dumps to svq@makemkv.com if you want anything done with them. Posting them on the forum doesn't start the process of getting the keys added.

[Matthias]

OK

Thx for helping a newbee