Thanks for the reply, and all the help! ^^

In the end I just moved the folders to a folder called "Naruto Shippuden" and that worked.
I made sure to donate you some beer-money!

This is what my folders look like



And this is the result of tagging a folder using AniDB



It's not like it's not giving me any names, the names are just not the right ones.

I'll try using CLI, might do the trick.

A lot of my downloaded episodes from Naruto Shippuuden episode 1 up till ~180 get tagged as being from Naruto , whilst they're not. The episodes are in several subfolders (for instance for episode 01-55, or from 56-138), all named like this: " 01. Naruto Shippuuden " The releases are from several ...