www.makemkv.com

Turns out same disc plays on VLC, except for the menus. Just rolls right through the main video.

Yes, linux is wonky with this. Won't play without telling it where java is. Then it plays even though the menus fail.

So the drive is fine, maybe some similar compatibility issue with makemkv as with ...

really? The same basic error happens with every disc I try. Only the very first was ever readable.

But if it's only the disc, I can enable LibreDrive?

From what I can gather in this thread, my new Pioneer drive with info

Drive Information
OS device name: /dev/sr0
Current profile: BD-ROM
Manufacturer: PIONEER
Product: BD-RW BDR-L08SHB
Revision: 1.15
Serial number: MLDL390651WL
Firmware date: 2018-01-24
Highest AACS version: 72

LibreDrive ...