Be able to specify where to find audio content

When the tool started up, I didn't have my iTunes settings correct initially, and although I followed the instructions to set the proper permissions, the program didn't find any of my iTunes audio files. I tried to uninstall and re-install the program, but it still didn't find any files. It also didn't find my Audible audio files. There doesn't seem to be any way that I can tell the tool where to look for content, so I have no way to evaluate this software.