The Windows extractor automatically puts what you're extracting into a folder of the same name as the .zip file. Because most tracks already come with their own folder, this creates the "double folder".Not sure if this is what you were experiencing, but I have noticed sometimes when I am installing a track it may have double folders and that causes the track to not show up. What I mean, is, take for example.. I don't know.. ORP07. I extract it or paste it to my tracks folder and it doesn't show up.