I have a few languages I can read/write, and if a media language in one of those languages, I would prefer use the original title in the name (the rest would be in english).
What is the best practice to do this?
Should you look for language in the meta data, and decide from there? Or should you go with language tag in the directory and/or filename (most releases is tagged with language)?
Appreciate all input.

(I've tried reading existing posts, but not getting that much smarter)