I have reformatted the drive, I have checked if the songs are protected, the radio recognizes the songs because I can search through song titles and see all songs are there, but it skips most of the songs.... I have tried EVERYTHING you can think of! Could it be the USB? It's an 8 Gb usb 3.0 The songs that do work work totally fine and like I said, radio READS the songs names when I look in the folder, but it won't play them... The manual says protected files will be skipped, But I looked to see if any of the files have DRM using windows and it says no.