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Yes, I've tried a few DVDs and Blu-rays and they played fine.

You guys seem pretty convinced that this drive has been flashed already. I bought this drive as new but in open box. All of my own flashing attempts resulted in failure #1. This suggests to me that whoever opened the box must have ...

Shouldn't it say "BNxx" (or "BUxx") as revision and not "1.00"?

Also, the drive should be able to read UHD discs after it has been flashed, right? I am asking because it won't read my so far one and only UHD disc. It's trying to read it for a few seconds and then gives up. Disc looks fine to me ...

I am trying to flash a Buffalo BRXL-PT6U2VB-EU drive but I am always getting "Updating Failure #1" which seems to indicate an incompatible drive.

Drive Information
OS device name: D:
Manufacturer: BUFFALO
Product: Optical Drive
Revision: 1.00
Serial number: WR19 151***
Bus encryption flags: 1B ...