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The volume key is unknown for this disc - video can't be decrypted
Posted: Mon May 27, 2019 9:51 am
by pacopepe
Hello
I was trying to make an mkv from an iso file of a 3D movie and I can't, I always get
this errors
Code: Select all
The volume key is unknown for this disc - video can't be decrypted
I can open
the file with bdinfo or extract content with tsmuxer, but with makemkv it always give
this problem.
If instead of trying to open
the ISO file I mount it with windows and then try to use
the virtual drive, I got
this
Code: Select all
MakeMKV v1.14.3 win(x64-release) started
Backing up disc into folder "C:/Video/backup/PINA_3D"
Downloading latest SDF to C:\Users\Desktop-CRD/.MakeMKV ...
Error 'Scsi error - NO SENSE:NO ADDITIONAL SENSE INFORMATION' occurred while issuing SCSI command A30..0020..03F to device 'SPTI:\Device\CdRom0'
REPEATED 1000 times
Error 'Scsi error - ILLEGAL REQUEST:CANNOT READ MEDIUM - INCOMPATIBLE FORMAT' occurred while issuing SCSI command AD010..080002400 to device 'SPTI:\Device\CdRom0'
Can't read AACS VID from disc - most likely current AACS host certificate is revoked by your drive
Downloading latest HK to C:\Users\Desktop-CRD/.MakeMKV ...
Saved AACS dump file as C:\Users\Desktop-CRD/.MakeMKV/MKB_v35_PINA_3D_56A6.tgz
The volume key is unknown for this disc - video can't be decrypted
Backup failed.
Any help?
Re: The volume key is unknown for this disc - video can't be decrypted
Posted: Mon May 27, 2019 12:51 pm
by Woodstock
ISO files are missing information needed to find
the volume key. You have two options - find a source of that
key, or use
the original disk to create a file with
the information MakeMKV needs.
You can find out more about it in
this topic:
Ripping an ISO of a disc I own - volume key unknown?
Re: The volume key is unknown for this disc - video can't be decrypted
Posted: Mon May 27, 2019 1:18 pm
by pacopepe
So if I don't have the disc and just the iso, there is nothing I can do at all to recover that key without finding someone with the blu ray that can make me a favour or a public data base (I just searched on one and find nothing for this movie)?
I though that as tsmuxer can open it, it wouldn't have a problem of encryption.
Any idea if I can solve this or it is just a dead end that no software can help?
Re: The volume key is unknown for this disc - video can't be decrypted
Posted: Mon May 27, 2019 1:46 pm
by Woodstock
There are sites that collect BD keys and publish them. You will see references to "key.db" (which MakeMKV can use) in various places. MakeMKV does not generally need it when dealing with original non-UHD BDs, because Mike's figured out how to get the key information directly.
There can be more than one volume key for a particular title, as well; some have dozens. Which means, if you borrow a copy of the same title to generate the key for it, it might not work with the copy that the ISO was created from.
Re: The volume key is unknown for this disc - video can't be decrypted
Posted: Mon May 27, 2019 2:08 pm
by pacopepe
As it is pretty niche (doubt there is on key databases) and I don't own the disc, can be a key generated somehow without having access to the disc and only the iso?
Re: The volume key is unknown for this disc - video can't be decrypted
Posted: Mon May 27, 2019 3:22 pm
by Woodstock
That I cannot answer, sorry.
Re: The volume key is unknown for this disc - video can't be decrypted
Posted: Wed May 29, 2019 9:41 pm
by renfield
What do you mean you can extract content with tsmuxer? You can produce a watchable video?
Re: The volume key is unknown for this disc - video can't be decrypted
Posted: Fri May 31, 2019 2:41 pm
by pacopepe
renfield wrote: ↑Wed May 29, 2019 9:41 pm
What do you mean you can extract content with tsmuxer? You can produce a watchable video?
Yes, I can extract
the content from
the br iso and make a mkv to see later or even watch
the h264.
The problem
is the BR
is a 3D BR, so it needs
the MCV file inside
the mkv, and there isn't any single software I know that can work with it to create
the remuxed mkv.
makemkv was
the only way to create it, but it doesn't work, so I can only have
the full br iso
for 3d, or make a remxed mkv but losing
the 3d
Re: The volume key is unknown for this disc - video can't be decrypted
Posted: Fri May 31, 2019 10:13 pm
by renfield
I'm guessing the error message is wrong then. If tsmuxer can make a video, then the data must already be decrypted in the iso. If the data is already decrypted, the volume key isn't needed.
I see now that the error is when makemkv is reading from SPTI:\Device\CdRom0. Perhaps the problem is that makemkv thinks it's reading from an actual BD (we say BD not Br). Instead of mounting the ISO as a "disc", just copy it as a folder.
Re: The volume key is unknown for this disc - video can't be decrypted
Posted: Sat Jun 01, 2019 1:03 am
by pacopepe
renfield wrote: ↑Fri May 31, 2019 10:13 pm
I'm guessing
the error message
is wrong then. If tsmuxer can make a video, then
the data must already be decrypted in
the iso. If
the data
is already decrypted,
the volume key isn't needed.
I see now that
the error
is when makemkv
is reading from SPTI:\Device\CdRom0. Perhaps
the problem
is that makemkv thinks it's reading from an actual BD (we say BD not Br). Instead of mounting
the ISO as a "
disc", just copy it as a folder.
yes,
the iso
is decrypted, but makemkv still thinks it isnt.
You mean extracting
the iso files to a folder and then which file should I try to open? because I can't see any option to open a folder with everything inside.
And if I extract
the iso with 7zip I just see a bunch of .class files and other things non related.
Re: The volume key is unknown for this disc - video can't be decrypted
Posted: Sat Jun 08, 2019 4:07 pm
by renfield
in makemkv, you open the 'BDMV' folder, which is required to exist at the top level of the disc (iso in your case).
Re: The volume key is unknown for this disc - video can't be decrypted
Posted: Wed Jul 22, 2020 9:52 pm
by agtba4544
I had the same error with Chernobyl Blu-Ray. Restarting the app works.