metadata guessing has worsened

[TheDreadPirate]

How are you folders named and organized? We have examples in our documentation.

https://jellyfin.org/docs/general/server/media/movies/
https://jellyfin.org/docs/general/server/media/shows/

A couple of common things I see that lead to misidentification are nesting of folders (like organizing media by genre) or not cleaning up resolutions, codecs, etc., in the folder/file name.

FWIW, IMDB IDs should be avoided as Jellyfin relies on TMDB/OMDB having a IMDB to TMDB/IMDB mapping (Jellyfin does not use IMDB for actual metadata). Stick with TMDB IDs.

I had to bite the bullet a while ago to retroactively add TMDB IDs to all my media and then kept doing that going forward. It has resulted in a MUCH better experience. Zero misidentified shows/movies since I started doing that. I highly recommend it.

There are apps that can automate this re-naming process. One we frequently recommend is Tiny Media Manager, but there are other apps that can do the same.