My USB drive has about 15 albums on it that i love to play. I downloaded a new album from a new artist to my laptop a few days ago. Then took the usb drive out of the M3 and plugged in to the laptop and copied the new album over at the same level all the other albums are. I was able to play songs from the new album on my laptop. But, when i returned the usb to the car, it did not show the new album or artist. All the others continue to play fine tho. the new album is mp3 format just like the others and every other attribute seems identical too. I have done a soft reboot and a hard reboot, and neither fixed things. What am i missing here?