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Posted: **Fri May 01, 2026 2:56 pm**

Hi folks, I have a BDR-211UBK that will not rip 4K discs, it errors out with "Can't read AACS VID from disc". I also have a BDR-212UBK on the other hand rips all the 4K discs the BDR-211UBK won't rip. The highest seen AACS version on both drives is v60. Both drives were purchased new in retail boxes from B&H years ago when they were still sold. I tried different USB enclosures and connecting directly via SATA, no change. I also tried the same 4K discs on a BDR-209DBK crossflashed to a BDR-211M and a brand new Asus BW-16D1X-U crossflashed to the BW-16D1HT v3.10 firmware and they rip just fine as well. I emailed the .tgz file that MakeMKV created on the BDR-211UBK to svq@makemkv.com for analysis.

MakeMKV for the BDR-211UBK:

Code: Select all

    Drive Information
    OS device name: E:
    Manufacturer: PIONEER
    Product: BD-RW BDR-211M
    Revision: 1.54
    Serial number: QHDL004326WL
    Firmware date: 2023-02-08
    Bus encryption flags: 13
    Highest AACS version: 60

    LibreDrive Information
    Status: Enabled
    Drive platform: RS8800
    Firmware name: PIONEER BDR-211
    Firmware type: Original (unpatched)
    Firmware version: 1.54/ID60
    DVD all regions: Yes
    BD raw data read: Yes
    BD raw metadata read: Yes
    Unrestricted read speed: Yes

MakeMKV info for the BDR-212UBK:

Code: Select all

    Drive Information
    OS device name: F:
    Manufacturer: PIONEER
    Product: BD-RW BDR-212U
    Revision: 1.05
    Serial number: AGDL002378WL
    Firmware date: 2023-08-01
    Bus encryption flags: 1B
    Highest AACS version: 60

    LibreDrive Information
    Status: Enabled
    Drive platform: RS8F01
    Firmware name: PIONEER BDR-212T
    Firmware type: Original (unpatched)
    Firmware version: 1.05/ID58
    DVD all regions: Yes
    BD raw data read: Yes
    BD raw metadata read: Yes
    Unrestricted read speed: Yes

Here's an example of a disc that the BDR-211UBK won't rip:

Code: Select all

    Label: THE MARTIAN
    Timestamp: 2016-01-28 18:11:08 -08:00
    Capacity: 48.9 GB (25660960 sectors)
    Authoring: ScenaristScenaristBD
    Number of layers: 2
    BEE: 1
    BE : 0
    DiscID: EB75B987AD93BE13EFEE36DFB6792F58B6059F9E
    AACS: 2.0 v60

Posted: **Fri May 01, 2026 3:54 pm**

Bad case? Try swapping how they are hooked up case maybe it's not passing through libredrive commands

Are they USB or SATA this is only likely if USB

Posted: **Fri May 01, 2026 7:17 pm**

I tried both drives in the same USB enclosure, so I know the enclosure is good.

I also tried the 211 drive in two other known good enclosures, same thing.

It plays all other discs just fine, just not 4K UHD. It sees the disc and I can browse the files on it.

I also tried XReveal, it complains it can't remove bus encryption either on its own or via LibreDrive.

Posted: **Sun May 03, 2026 11:11 pm**

See if this works. Its been talked about and maybe it could help.
Make sure all CD-DVD-Blu Ray-UHD drives are not connected.
Go to C:\Users\your users name here\.MakeMKV delete the _private_data.tar file.
Connect the 211M (UBK) and open Makemkv and put in a UHD disc. Let Makemkv do its thing and update the _private_data.tar.
See if this helps.

Posted: **Mon May 04, 2026 1:31 am**

I tried that, it just did the HK download and then gave the same "Can't read AACS VID from disc" error.

I did more testing. I connected the BDR-211UBK drive via SATA and LibreDrive works fine now.

So leaving this post up for those who have the same problem.

Really bizarre that I have three other drives (2x Pioneer, 1x Asus) that work fine in three different USB enclosures.

Only this BDR-211UBK refuses to run in LibreDrive mode over USB (connected directly to computer, no hubs), but it works over SATA.

Posted: **Mon May 04, 2026 2:16 am**

That is pretty odd. I have the same drive and never had any issue with it ever. As of now I have it connect to Benfei SATA to USB 3.0 cable. It reads, burns and rips all forms or media with no issues. I noticed your firmware date is 2023-02-08. I really don't think that would affect your drive since it is already UHD enable from factory. Glad it is working for you connected directly to a SATA, Power cable from your computer.

Posted: **Mon May 04, 2026 3:24 pm**

Pretty sure this comes down to the enclosure SATA USB bridge.

Use the drive internally or buy this adapter:

https://www.amazon.com/BENFEI-Drive-Ada ... r=8-1&th=1

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BDR-211UBK won't rip 4K discs that other drives rip fine

BDR-211UBK won't rip 4K discs that other drives rip fine

Re: BDR-211UBK won't play 4K discs that BDR-212UBK plays fine

Re: BDR-211UBK won't play 4K discs that BDR-212UBK plays fine

Re: BDR-211UBK won't rip 4K discs that other drives rip fine

Re: BDR-211UBK won't rip 4K discs that other drives rip fine

Re: BDR-211UBK won't rip 4K discs that other drives rip fine

Re: BDR-211UBK won't rip 4K discs that other drives rip fine