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The drive did and I have movies on my hard drive that I ripped using the Pioneer drive.

Sorry for the misunderstanding. I have no reason to believe the firmware for the Pioneer was updated.

I do believe that the issue was caused by the MacOS update.

I can look for the log files and check the dates. Where can I find them on my MacBook Pro??

I don''t believe that is the issue. This worked fine before I updated the OS on my MacBook. And I do not believe the firmware on my Pioneer has changed since it worked

Since my Mac has updated to Sequoia I have not been able to copy UHD discs. Blu-Ray and DVD copy fine. This had worked: PIONEER External Blu-ray Drive BDR-X13U-S Excellent Reliability & Stability 16x BD-R Writing Speed USB 3.2 Gen1 / 2.0 BD/DVD/CD Writer with PureRead 4+ Realtime PureRead X13U-S...

Help for BDR-X13U?? Drive Information OS device name: /dev/rdisk6 Current profile: BD-ROM Manufacturer: PIONEER Product: BD-RW BDR-X13U Revision: 1.04 Serial number: DDDL300587UC Firmware date: 2023-08-01 Bus encryption flags: 1B Highest AACS version: 81 LibreDrive Information Status: Possible, not ...

Trying to copy a UHD disk from PIONEER External Blu-ray Drive BDR-X13U-S This worked before the OS upgrade Tried multiple disks. Getting the same errors MakeMKV v1.17.8 darwin(arm64-release) started Debug logging enabled, log will be saved as /Users/mike/MakeMKV_log.txt Optical drive "BD-RE PIO...