I have movies with different content ratings, but Mezzmo doesn't correctly recognize the values. I use TinyMediaManger and the NFO files it creates have MPAA and certification fields (both with same value). But, when it comes to NC-17 ratings, Mezzmo classifies movies as TV-14. This is how NC-17 looks in the NFO file:

Code:
<mpaa>US:PG / US:Rated PG</mpaa>
<certification>US:PG / US:Rated PG</certification>
or:

Code:
<mpaa>US:NC-17 / US:Rated NC-17</mpaa>
<certification>US:NC-17 / US:Rated NC-17</certification>
PG, R, PG-13 or G are correctly processed, but NC-17 are all displayed as TV-14.

Milan