If you have 12.5 now, you do not have folder anymore. You would have had it before, but you had to scroll down one level in the list menu to the left to see it. Yes, that is exactly what happened to me too! I was listening to music in a folder for rock and then next thing I knew, it was Christmas carols! I have since removed that Christmas folder from my USB. I just do not get WHY Kia would remove something that was already there and working well? In every other car I have been in, 'folder' has always been an option. It WAS an option in this car, but they took it out. Makes no sense. Just like putting only ONE USB port in the car, so you cannot have your phone and your music in at the same time.