Newer AACS protection on BD-R from Panasonic Recorder

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whitedb
Posts: 3
Joined: Thu Oct 16, 2025 5:27 pm

Newer AACS protection on BD-R from Panasonic Recorder

Post by whitedb »

This is the first time I have seen this error. The Disc is a BD-R recorded on a Panasonic BMR-DWT740. I got the same error on two computers with different drives. What is really strange is that I decrypted three discs at the weekend from the same recorder but a disc made today did not work!

Any suggestions? I tried to save a non-decrypted copy first and then open that as well as opening the disc directly. Neither worked.

MakeMKV v1.18.2 darwin(x64-release) started
Optical drive "BD-RE HL-DT-ST BD-RE BH10LS30 1.00 K9ZA57L4329d" opened in OS access mode.
Using direct disc access mode
This disc uses newer version of AACS protection. Please let us know about it by visiting http://www.makemkv.com/a/?IBMsVtTLkcmzWE...
Saved AACS dump file as /Users/whitedb/Library/MakeMKV/MKB_v82_DVD_VIDEO_RECORDER_F39A.tgz
The volume key is unknown for this disc - video can't be decrypted
Failed to open disc
MartyMcNuts
Posts: 4082
Joined: Wed Nov 22, 2017 11:45 pm

Re: Newer AACS protection on BD-R from Panasonic Recorder

Post by MartyMcNuts »

whitedb wrote:
Tue Nov 04, 2025 5:51 pm
This is the first time I have seen this error. The Disc is a BD-R recorded on a Panasonic BMR-DWT740. I got the same error on two computers with different drives. What is really strange is that I decrypted three discs at the weekend from the same recorder but a disc made today did not work!

Any suggestions? I tried to save a non-decrypted copy first and then open that as well as opening the disc directly. Neither worked.

MakeMKV v1.18.2 darwin(x64-release) started
Optical drive "BD-RE HL-DT-ST BD-RE BH10LS30 1.00 K9ZA57L4329d" opened in OS access mode.
Using direct disc access mode
This disc uses newer version of AACS protection. Please let us know about it by visiting http://www.makemkv.com/a/?IBMsVtTLkcmzWE...
Saved AACS dump file as /Users/whitedb/Library/MakeMKV/MKB_v82_DVD_VIDEO_RECORDER_F39A.tgz
The volume key is unknown for this disc - video can't be decrypted
Failed to open disc
I assume your previous discs were not AACS v82?? MAkeMKV cannot yet natively decrypt AACS v82. For the moment, AACS v82 dumps must be emailed in but since yours is not a standard pressed blu-ray disc, the dump is no good. You will just have to wait until MakeMKV can natively decrypt AACS v82.
Cheers :D
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For UHD enabled drives (AU/NZ/SG + Others) & DIY Single Drive Flasher (WW): https://uhdenableddrives.com
whitedb
Posts: 3
Joined: Thu Oct 16, 2025 5:27 pm

Re: Newer AACS protection on BD-R from Panasonic Recorder

Post by whitedb »

Thanks for that. I have two Panasonic recorders and I checked the discs that I had previously just written and could read and yes, they were AACSv81. It seems as if one of my two (supposedly identical) BD recorders has updated itself to AACS 82 and they were the discs I could not decrypt. Incredibly annoying as I use the device to shift some TV recordings to my computer.

I will wait. I know it is hard to be certain but do you have any feel for how long native support might take?

Thanks
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