Mezzmo 4.0.1.0

After updating the program and using "Add/Scan Drive/Folder for Media Files...", I now see entries in my Library/Video list like "<title> (m/n)" (all lower case), for example, "iron man 3 (2/2)". Why is this? Can this clutter be reduced?

Seemingly about 68 of 330 total entries in the right pane were added.