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Hi, New to trying to RIP my 4K library, getting failure and attaching the 2 dumps files. Background below, asking for any clues to the issue. Thanks for any help to resolve...

Drive: HL-DT-ST BD-RE BU40N, Serial MO8P55I2701
Enclosure: Archgon MD-8107S-U3YC-UHD (USB-C enclosure — known to block firmware flashing via INIC-3639PN chip)
Firmware history:

Original firmware: 1.02 (encrypted)
Flashed to 1.03-MK successfully using SDFTool Flasher v1.36 via slimline SATA cable bypassing enclosure (enclosure blocks flash)
Later flashed to 1.00 (plain, unpatched — DE_LG_BU40N_1_00.bin from MartyMcNuts pack) attempting to resolve issue — confirmed showing as "Original (unpatched)" in MakeMKV
Note: DE_LG_BU40N_1_00_MK.bin not present in MartyMcNuts pack, only DE_LG_BU40N_1_03_MK.bin and DE_LG_BU40N_1_00.bin available

Current drive info (1.00 unpatched):

Bus encryption flags: 17
Highest AACS version: 70
LibreDrive Status: Enabled
Firmware type: Original (unpatched)

Previous drive info on 1.03-MK:

Bus encryption flags: 1F
LibreDrive Status: Enabled
Firmware type: Patched (microcode access re-enabled)

Issue:
Getting "Can't read AACS VID from disc - most likely current AACS host certificate is revoked by your drive" on ALL UHD discs tested (Bohemian Rhapsody AACS v66, The Mule AACS v68). Fails identically on both macOS (MacBook Pro M4 arm64, MakeMKV 1.18.3) and Windows (x64, MakeMKV 1.18.3). KEYDB.cfg installed. Regular Blu-ray discs read fine.
Dump files available:

MKB20_v66_Bohemian_Rhapsody_4FE1.tgz
MKB20_v68_The_Mule_633D.tgz

Question: Is the host certificate on this drive permanently revoked, and if so is there a fix? Or is there a patched 1.00-MK firmware for the BU40N that would resolve this?

JAS2507 wrote: ↑

Sat May 16, 2026 5:08 pm

Hi, New to trying to RIP my 4K library, getting failure and attaching the 2 dumps files. Background below, asking for any clues to the issue. Thanks for any help to resolve...
Getting "Can't read AACS VID from disc - most likely current AACS host certificate is revoked by your drive" on ALL UHD discs tested (Bohemian Rhapsody AACS v66, The Mule AACS v68). Fails identically on both macOS (MacBook Pro M4 arm64, MakeMKV 1.18.3) and Windows (x64, MakeMKV 1.18.3). KEYDB.cfg installed. Regular Blu-ray discs read fine.

These errors mean that LibreDrive has not been enabled, which in turn means that both your dumps are unusable . MakeMKV requires LibreDrive enabled - perhaps try power-cycling your UHD drive, waiting until MacOS mounts the disk and then launch MakeMKV again? (LD seems to have an intermittent "timing" issue...) Failing that, maybe your drive still has unsuitable firmware?

BTW the best way to share dumps is to upload them into a file host service (e.g. OneDrive, Google Drive etc) and then just post public download links here. Dumps files can often be several MB in size, which makes them far too big for attachments.

JAS2507 wrote: ↑

Sat May 16, 2026 5:08 pm

Hi, New to trying to RIP my 4K library, getting failure and attaching the 2 dumps files. Background below, asking for any clues to the issue. Thanks for any help to resolve...

Drive: HL-DT-ST BD-RE BU40N, Serial MO8P55I2701
Enclosure: Archgon MD-8107S-U3YC-UHD (USB-C enclosure — known to block firmware flashing via INIC-3639PN chip)
Firmware history:

Original firmware: 1.02 (encrypted)
Flashed to 1.03-MK successfully using SDFTool Flasher v1.36 via slimline SATA cable bypassing enclosure (enclosure blocks flash)
Later flashed to 1.00 (plain, unpatched — DE_LG_BU40N_1_00.bin from MartyMcNuts pack) attempting to resolve issue — confirmed showing as "Original (unpatched)" in MakeMKV
Note: DE_LG_BU40N_1_00_MK.bin not present in MartyMcNuts pack, only DE_LG_BU40N_1_03_MK.bin and DE_LG_BU40N_1_00.bin available

Current drive info (1.00 unpatched):

Bus encryption flags: 17
Highest AACS version: 70
LibreDrive Status: Enabled
Firmware type: Original (unpatched)

Previous drive info on 1.03-MK:

Bus encryption flags: 1F
LibreDrive Status: Enabled
Firmware type: Patched (microcode access re-enabled)

Issue:
Getting "Can't read AACS VID from disc - most likely current AACS host certificate is revoked by your drive" on ALL UHD discs tested (Bohemian Rhapsody AACS v66, The Mule AACS v68). Fails identically on both macOS (MacBook Pro M4 arm64, MakeMKV 1.18.3) and Windows (x64, MakeMKV 1.18.3). KEYDB.cfg installed. Regular Blu-ray discs read fine.
Dump files available:

MKB20_v66_Bohemian_Rhapsody_4FE1.tgz
MKB20_v68_The_Mule_633D.tgz

Question: Is the host certificate on this drive permanently revoked, and if so is there a fix? Or is there a patched 1.00-MK firmware for the BU40N that would resolve this?

The enclosure doesn't just block flashing but also blocks libredrive commands so if you put it back in the enclosure it wont work.

Update:
Thanks for the info, and understand to post links vs attachments.
Confirmed drive reads/recognizes disc(s) before launching MakeMKV, same result. Removed from case and used same Dell slimline SATA cable used to flash. Flashed back to 1.03, and connected directly to Windows PC, bypassing the Archgon enclosure entirely — same result, rules out enclosure blocking LibreDrive or at least not only fix.
Key finding on Bus encryption flags:
• After very first flash to 1.03-MK (before any UHD discs inserted): flags were 1F
• After multiple failed UHD disc attempts across firmware versions (1.03-MK, 1.00, back to 1.03-MK): flags now showing 17

Flags have not recovered through subsequent reflashing. Suspect the failed AACS key exchange attempts during UHD disc insertions caused the disc's MKB to update the drive's internal AACS state, dropping flags from 1F to 17. Is this recoverable, and if so how?

Current state: 1.03-MK firmware, Bus encryption flags 17, LibreDrive shows Enabled/Patched but UHD ripping still failing with "host certificate revoked" on all discs tested (Bohemian Rhapsody v66, The Mule v68).

Drive info in MakeMKV
Drive Information
OS device name: F:
Current profile: BD-ROM
Manufacturer: HL-DT-ST
Product: BD-RE BU40N
Revision: 1.03
Serial number: MO8P5xxxx
Firmware date: 2118-10-24 19:34
Bus encryption flags: 17
Highest AACS version: 70

LibreDrive Information
Status: Enabled
Drive platform: MT1959
Firmware type: Patched (microcode access re-enabled)
Firmware version: 1.03
DVD all regions: Yes
BD raw data read: Yes
BD raw metadata read: Yes
Unrestricted read speed: Yes

Disc Information
Label: BOHEMIAN_RHAPSODY
Timestamp: 2019-01-14 16:45:31
Protection: AACS2.0/C v66
Data capacity: 61.13 Gb
Disc type: BD-ROM UHD
Number of layers: 2
Bus encryption flags: 80