I have just recently switched over to Plex from Kodi and although it looks like Plex has picked up most of my movie and tv library I think some are missing.
Is there a way to tell which files Plex has not recognised or created metadata for?
why not play them?
And this bit from OK’s reply above
Tip: you can use 3rd party software to assist you in cleaning up your file and folder names.
One such very useful product is Filebot
Don’t forget to set it to use the {plex} naming schema and do also take a look at the introductory videos.
