As simplest attempt - try Optimize command with Subler.
If that does not help, then i have no better advice to give, unfortunately.
Several files that I ripped from DVD have gotten to where they won't play except in VLC. Any idea why this is or how to remedy it? I can't stream the movies using Plex anymore.
The only thing that has worked is opening and resaving in QuickTime.
So it plays in VLC, quick time (since you can convert it?), but not Plex?
What program did the encoding? What standard did it use for the encoding? You can get that information from something like MediaInfo:
View attachment 803713
What standard did it use for the encoding? You can get that information from something like MediaInfo: