www.makemkv.com

To enable UHD ripping, you need to flash it back to an older, libredrive compatible version. Either BU40N 1.03-MK or BU40N 1.00, the latter if you use other UHD ripping software besides MakeMKV and Xreveal or use Linux. On Windows, you can use SDFtool flasher to flash it. The first post of the SDFt...

Thank you for helping.

I don't remember updating the firmware, but that would make sense. Since the drive was working perfectly, I wasn't aware that updating the firmware might be a problem.

How do you suggest that I proceed?

I bought a Verbatim 43888 drive last year and it has worked perfectly until recently, but now suddenly it won't read 4K UHD discs anymore. This is the drive information from one of the recent tries: Drive Information OS device name: G: Current profile: BD-ROM Manufacturer: HL-DT-ST Product: BD-RE BU...