Hi, did your MP4 player use to play songs but doesn't anymore? or has it been that way since you purchased it? All I can think off at this stage is it could be a problem with formating. You'll need to convert the files to the right format. There a free software that you can do that with called Cucusoft Ultimate Converter Suite. You can download it at; http://www.totosoft.net/products/ultimate/Ultim....

You could also try deleting all the media from the root directory. That might work too :)