Makes sense
Discussion
If you have radarr and sonarr add the TMDB ID to your folder/filname that will prevent any confusion in the future.
I need to do this for every movie?
No. Set up Sonarr and Radarr to do it with future downloads.
If a movie gets identified wrong, it's best you manually rename it with the tmdb ID number so you don't have to ever deal with it again.
In your opinion, what’s the best practice for my existing collection? I have terabytes of movies, tv shows, music