MY 512MB PLAYER STOPPED WORKING 2 DAYS AGO WHEN PLUGGED VIA USB I GET THE MESSAGE DISK J IS NOT FORMATTED WHEN I TRY TO FORMAT IT SAYS DISK IS WRITE PROTECTED WORST IS THE MENU ON THE PLAYER IS MOSTLY CHINESE (NIGHTMARE) CAN ANY1 HELP PLZ(BY THE WAY THERES NO MAKE OR MODEL NUMBER ON THE PLAYER)