Buffalo BRUHD-PU3 & UHD Discs

Discussion in 'AnyDVD HD (Blu-ray issues)' started by ryley, Dec 22, 2017.

  1. ryley

    ryley Member

    Hi, I've bought a Buffalo BRUHD-PU3 and whilst it is working well with regular Blurays, my test UHD disc (Labyrinth) is not decrypting. I can browse the contents of the disc and according to another UHD decryption package, this drive should be capable of decrypting UHD discs. The same UHD disc is properly decrypted by AnyDVD with my BH16NS55.

    I've attached the log, but the main gist seems to be:

    Total size: 28582400 sectors (55825 MBytes)
    Video Blu-ray label: Labyrinth (1986)
    Media is AACS protected!
    Drive supports bus encryption!
    Disc wants bus encryption!
    couldn't retrieve AGID (bus encryption)!
    ERROR processing Blu-ray disc!
     

    Attached Files:

  2. Ch3vr0n

    Ch3vr0n Translator NL & Mod

    The drive is AnyDVD isn't. UHD support is currently limited to the titles who've had their decryption keys leaked. IF it's not on that list you're out of luck, for the moment
     
  3. ryley

    ryley Member

    Thanks for the reply. My disc is supported by AnyDVD with the publicly available key file, that is why I can rip the disc with my BH16NS55. Its when I try to rip the same disc (as a test) with the Buffalo drive that I get the bus encryption error message. Sorry for being unclear.
     
  4. Ch3vr0n

    Ch3vr0n Translator NL & Mod

    Hmm, looked it up. That looks like one of those licensed real UHD drives (not the "uhd friendly" kind). Which means in order to decrypt UHD discs in such a drive, a valid AACS 2.0 host certificate is required. Such a certificate isn't available yet, thus AnyDVD fails. That the drive supports bus encryption and your disc wants it has nothing to do with it. the NS55 supports bus encryption too and anydvd can handle that just fine.
     
  5. ryley

    ryley Member

    Thanks for the suggestion. As a test, I just tried DeUHD in VirtualBox with the Buffalo drive passed through USB. Whilst Labyrinth isn't supported by DeUHD, my other disc (Deadpool) is supported. With DeUHD, my Buffalo drive was able to open, access and decrypt the UHD Deadpool disc without any issues. Is this to be expected? I also tried AnyDVD in VirtualBox to see if my host machine may have an issue, but it still had the bus encryption error (with Labyrinth - my Deadpool doesn't have a public key at the moment).
     
  6. ryley

    ryley Member

    I just tested the Buffalo drive with 8.2.1.3 and the bus encryption error remains.
     

    Attached Files:

  7. Ch3vr0n

    Ch3vr0n Translator NL & Mod

    Bus encryption isn't an error. It's a technology used by disc and drive to create a secure data transmission channel. Just because you have a title that's on the list by name, doesn't mean it's the same release version. Titles come in multiple versions per region. If yours isn't EXACTLY the same as the one who's key has been leaked it won't work. and even then it won't work with THAT drive. That's an UHD compliant drive. Meaning, as said in my post above, in order to decrypt such titles a valid AACS 2.0 host certificate is needed. Anydvd doesn't have that (yet), and to get one AACS 2.0 needs to be cracked completely, which it isn't.
     
  8. ryley

    ryley Member

    The exact same disc works with AnyDVD and my BH16NS55 drive. The disc is supported and the key is available. I have the key for the disc.
     
  9. Ch3vr0n

    Ch3vr0n Translator NL & Mod

    Then you need to read my posts again. UHD compliant drive > AACS 2.0 host certificate needed > doesn't exist (yet)
     
  10. ryley

    ryley Member

    If that is the case, why can I decrypt UHD discs with DeUHD and my Buffalo drive? Do they have a 2.0 host certificate?
     
  11. Ch3vr0n

    Ch3vr0n Translator NL & Mod

    You'll have to ask them. This isn't the DeUHD forum.
     
  12. ryley

    ryley Member

    Sorry, I know this is the AnyDVD forum. Thats why I'm asking for help with AnyDVD. I only mentioned DeUHD because its trial seems to be able to do what you said is not currently possible.
     
  13. SamuriHL

    SamuriHL Retired Moderator

    It's very likely they have an AACS 2.0 Certificate, but, we don't know for sure. Given that it works with AACS 2.0 compliant drives, it's more than likely they do. But there isn't one publicly available that AnyDVD can use which is the point. That will likely change at some point in the future but no one knows when that'll be.
     
  14. ryley

    ryley Member

    That's interesting. I don't nearly understand the details of AACS, but I would've thought if you had an AACS 2.0 host certificate and the correct VUK you could rip with any UHD capable drive (like the more recent Pioneer models). Which is weird, because DeUHD seems to only support LG and LG re-branded drives.
     
  15. Ch3vr0n

    Ch3vr0n Translator NL & Mod

    LG doesn't rebadge drives, it's other brands that rebadge LG ones

    Sent from my Nexus 6P with Tapatalk
     
  16. ryley

    ryley Member

    Thanks, that was what I meant. I think my Buffalo drive is a re-branded LG laptop drive in a USB enclosure.
     
  17. SamuriHL

    SamuriHL Retired Moderator

    Yea I don't really know all the details of why it works with some drives and not others. Your understanding is what I would have thought as well. Actually thinking about it now it's possible whatever certificate they're using is revoked by the drives that aren't working. That's very likely in fact.

    Sent from my Pixel XL using Tapatalk
     
  18. mikech

    mikech Member

    No, they used vendor commands to modify AACS2 AGID state in drive memory. Thanks to them these commands are now disabled in newer firmwares, rendering more and more drives useless.
     
  19. SamuriHL

    SamuriHL Retired Moderator

    Lovely....isn't that charming. sigh
     
  20. James

    James Redfox Development Team Staff Member

    Very interesting. And explains, why DeUHD fails with Pioneer drives.