Latest questions about "foxtab audio converter"

I have a Handycam camcorder and I am trying to transfer a recorded film into my computer in order to burn it on a disc. I don't know how to work with Foxtab Audio Converter.

When I click the Add Folder button, my folder directory appears and when I double-click the folder I want to add nothing happens. I can add files without any problems. What can I do?