Folder problem

First i must say…im german and sorry for the english.
I installed infuse at my atv4 and after trying a long time i get acces to my hdd. I use a airport extreme and there is a external hard drive on it with music and movies. So i see all the mainfolder but when I click on the folder to open them it says that the folders are empty.
Any suggestions what kind of problem it is?

Infuse is currently designed for videos files only, so folders that contain only music will appear empty in Infuse.

Thank you but i have the same problem with the movie folders.