Need Help Identifying Platform for HL-DT-ST BP55EB40-EB52 Blu-ray Drive

[xavierxyp]

Hello!

I recently bought a nearly new Blu-ray drive from a local reseller: HL-DT-ST BP55EB40, SVC Code: EB52.
When I connected it to MakeMKV, it didn’t show any LibreDrive information. I also tried SDFtoolFlasher, which reported that the drive isn’t based on the MT1959 platform.
I’m a bit puzzled. Is there a way to determine the platform this drive uses without disassemble it?

Any guidance or tips would be greatly appreciated—thanks in advance!

Ref: https://forum.makemkv.com/forum/viewtopic.php?t=37876

Information from MakeMKV v1.18.1:
Drive Information
OS device name: [REDACTED]
Current profile: CD-ROM
Manufacturer: HL-DT-ST
Product: BD-RE BP55EB40
Revision: 1.02
Serial number: WQ94 [REDACTED]
Bus encryption flags: 1B
Highest AACS version: 71

Label in drive:
Manufactured: 2025.05.06 (May 2025)
ROM VER: 1.03

[MartyMcNuts]

Hello!

I recently bought a nearly new Blu-ray drive from a local reseller: HL-DT-ST BP55EB40, SVC Code: EB52.
When I connected it to MakeMKV, it didn’t show any LibreDrive information. I also tried SDFtoolFlasher, which reported that the drive isn’t based on the MT1959 platform.
I’m a bit puzzled. Is there a way to determine the platform this drive uses without disassemble it?

Any guidance or tips would be greatly appreciated—thanks in advance!

Ref: viewtopic.php?t=37876

Information from MakeMKV v1.18.1:
Drive Information
OS device name: [REDACTED]
Current profile: CD-ROM
Manufacturer: HL-DT-ST
Product: BD-RE BP55EB40
Revision: 1.02
Serial number: WQ94 [REDACTED]
Bus encryption flags: 1B
Highest AACS version: 71

Label in drive:
Manufactured: 2025.05.06 (May 2025)
ROM VER: 1.03

It uses the MT1959 drive platform. Post the libredrive info section, which should be below the drive info section.

[Ezatoka]

maybe take out the CD-ROM which seem to be in the drive and keep the drive empty while looking up the info on MakeMKV

[xavierxyp]

It uses the MT1959 drive platform. Post the libredrive info section, which should be below the drive info section.

Thanks for the reply!
I’m still a bit confused though, since I don't see any additional information under the drive info section.
Did I possibly miss a step?



I’m also starting to wonder if there might be a mismatch somewhere, maybe it's just a labeling or firmware issue, or perhaps the actual hardware isn't exactly what the seller listed.
Is there any reliable way to verify the real hardware model without physically opening the drive?

[MartyMcNuts]

It uses the MT1959 drive platform. Post the libredrive info section, which should be below the drive info section.

Thanks for the reply!
I’m still a bit confused though, since I don't see any additional information under the drive info section.
Did I possibly miss a step?



I’m also starting to wonder if there might be a mismatch somewhere, maybe it's just a labeling or firmware issue, or perhaps the actual hardware isn't exactly what the seller listed.
Is there any reliable way to verify the real hardware model without physically opening the drive?

Down the right hand side, should look similar to this:

Drive Information
OS device name: H:
Manufacturer: PIONEER
Product: BD-RW BDR-S12U
Revision: 1.00
Serial number: **REDACTED**
Firmware date: 2019-01-10
Bus encryption flags: 1B
Highest AACS version: 82

LibreDrive Information
Status: Enabled
Drive platform: RS8F01
Firmware name: PIONEER BDR-212T
Firmware type: Original (unpatched)
Firmware version: 1.00/ID43
DVD all regions: Yes
BD raw data read: Yes
BD raw metadata read: Yes
Unrestricted read speed: Yes

No disc inserted

As you can see, there is the Drive Info and LibreDrive Info sections. Your drive should show MT1959 under drive platform.

If the Libredrive section is not showing, close MakeMKV, insert a blu-ray disc in to the drive, wait until Windows has initialised the disc (you can see it in windows explorer) then open up MakeMKV. Hopefully once MakeMKV sees the disc, it will show these sections.

[xavierxyp]

If the Libredrive section is not showing, close MakeMKV, insert a blu-ray disc in to the drive, wait until Windows has initialised the disc (you can see it in windows explorer) then open up MakeMKV. Hopefully once MakeMKV sees the disc, it will show these sections.

Thanks for the suggestion.
I tried, but unfortunately the LibreDrive section still doesn’t show up. Here's a screenshot of what I see below: https://imgur.com/a/R0aTmPE

[MartyMcNuts]

If the Libredrive section is not showing, close MakeMKV, insert a blu-ray disc in to the drive, wait until Windows has initialised the disc (you can see it in windows explorer) then open up MakeMKV. Hopefully once MakeMKV sees the disc, it will show these sections.

Thanks for the suggestion.
I tried, but unfortunately the LibreDrive section still doesn’t show up. Here's a screenshot of what I see below: https://imgur.com/a/R0aTmPE

Does MakeMKV have internet access? In preferences, ensure the box is checked.