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Posted: **Mon Jan 16, 2023 7:45 pm**

Hi, ive ripped hundreds of disc with MakeMKV and never had this error before

Ive come to rip the Black Adam 4k and i'm getting the following error message:

Volume Key is unknown for this disc - video cannot be decrypted
Backup failed

Ive ripped the standard 1080p blu ray disc that came with it and that works just fine.

Has anyone else had a problems with this disc and do I need to wait for MakeMKV to prepare a volume key?

Thanks in advance

Posted: **Mon Jan 16, 2023 8:57 pm**

UHD FAQ

MakeMKV says that "the volume key is unknown for this disc"?
MakeMKV produces an AACS .tgz dump file whenever you try to open a disc for which the key is unknown, and will report that the dump has been created. Email the dump file to svq@makemkv.com.

Posted: **Mon Jan 16, 2023 8:58 pm**

markjames81 wrote: ↑
Mon Jan 16, 2023 7:45 pm
Hi, ive ripped hundreds of disc with MakeMKV and never had this error before

Ive come to rip the Black Adam 4k and i'm getting the following error message:

Volume Key is unknown for this disc - video cannot be decrypted
Backup failed

Ive ripped the standard 1080p blu ray disc that came with it and that works just fine.

Has anyone else had a problems with this disc and do I need to wait for MakeMKV to prepare a volume key?

Thanks in advance

Send in the dump file that was created so the volume key can be generated.

Posted: **Wed Jan 18, 2023 10:39 am**

Ripped OK yesterday.

www.makemkv.com

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