player to work? Model No: VX8550LK: I added memory via a SD card, once in the phone I formatted it. Then I plug the card into the PC and added music in MP3 format. However, when I put the card in the phone it recognizes nothing and says the file is empty even though the card shows it has the files on it when I ask of the memory used. I did some research that seemed to say that the player will read anything in MP3 format...