I tried a search but couldn't really find an answer. I have the 2012 NAV and Entune stereo with USB port. My USB flashdrive (32GB) is organized via folders and sub-folders to separate genre and artists much like you would do when organizing music on a computer. My old Kenwood stereo read this format just fine but the Prius stereo just plays tracks based on their numeric filename so that everything with say 01 plays in order then it goes to 02 and so on. Eventually it skips a bunch of music and starts over again so that I will hear repeat tracks well before listening to the entire 3000+ songs on the drive. I have no way of listening to one album from an artist or even switching between genres to find a song I want. I am basically limited to forwarding to the next track or pushing the List button and trying to cycle through all 200+ songs starting with the label 01. I'm sure I am missing something but rather than spend hours trying to re-organize my flashdrive I thought I would see if you guys have found a better solution. My old system had a button for changing folders and another button for changing tracks.