Avatar: Fire and Ash UHD (Disc ID 6F48) - Volume key unknown

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Czesticles
Posts: 1
Joined: Sun Jun 21, 2026 8:07 am

Avatar: Fire and Ash UHD (Disc ID 6F48) - Volume key unknown

#1 Post by Czesticles » Sun Jun 21, 2026 8:12 am

Hello,

I'm having trouble opening my 4K UHD copy of Avatar: Fire and Ash with MakeMKV v1.18.4.

Disc details:

Title: Avatar: Fire and Ash
Edition: 4K UHD SteelBook
Protection: AACS2.0/C v82
Disc ID: 6F48

Drive details:

HL-DT-ST BD-RE BU40N
Firmware version: 1.00
LibreDrive Status: Enabled

MakeMKV successfully detects the disc and creates the AACS dump file, but fails with the following error:

"The volume key is unknown for this disc - video can't be decrypted"

The generated dump file is:
MKB20_v82_Avatar_Fire_and_Ash_6F48.tgz

Other UHD discs are working correctly on the same system. For example, Avatar: The Way of Water UHD opens successfully, so the drive, LibreDrive configuration and MakeMKV installation appear to be functioning normally.

I've attached the dump file generated by MakeMKV.

Thank you.

dcoke22
Posts: 4524
Joined: Wed Jul 22, 2020 11:25 pm

Re: Avatar: Fire and Ash UHD (Disc ID 6F48) - Volume key unknown

#2 Post by dcoke22 » Sun Jun 21, 2026 9:55 am

Attach the dump file to an email and send it to svq@makemkv.com so a hashed key can be created.

UHD FAQ

In the meantime, try the Public KeyDB.

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