Trying to up Storm of the Century (1999), a 2 disc movie, to Plex. I followed the instructions for naming, using literally every combination the support page suggested: movie (year)/movie (year) - ptx discx diskx partx. tried giving different names and merging, plex DELETED the second file from the list (splitting did bring back). All instructions for linux software to merge all have complicated instructions that a beginner in linux can’t yet understand.
3 hours and a burned dinner later, no closer to a fix.