Oh, I see the code. I understand what you mean when you ask me how can you see that Moon is a Volume.
It seems that you consider two folders back in the path, so I tried:
/Volumes/Moon/Film/zambezia.avi -> Moon (2009)
/Volumes/Moon/Film/Cartoon/zambezia.avi -> Film (2011)
/Volumes/Moon/Film/Cartoon ...

Same behavior.

I found the r1847. I'm going testing it, thank you.

Hello,
on Mac, every directory in the /Volumes folder is actually the volume name, and should be stripped off.
What do you mean with r1847?
Thank you.

Hello,
I'm trying to rename films on my external disk, the directory is: /Volumes/ Moon /Film/
Almost every time, regardless the film name, I get the same name suggestion: the film Moon (2009, Duncan Jones). It seems that the volume name is not stripped off by the name before analyze it ...