Initially, I had the same problem UNTIL I saved the second Playlist folder to the USB. Before that, I had copied the main playlist folder to USB, but the SX just showed the lists but couldn't access them when I selected it. What I did after that was to copy the SECOND folder that was within the first main folder list to the USB. The SX then successfully used that folder to extract the contents. When I did that, I could then access all the contents.