I have a ministry of sound mp3 player serial number MOSMP075X10. When I turn it on it comes up with the following message: Not enough memory. Connect to PC and delete 4M of songs for music library file. then it turns itself off. how do i fix it? I have a Trekstor iBeat Jump mp3 player and it displays exactly the same message. When I do connect it however, windows tells me it has to be formatted. I don't want to format it because I have some recordings on it. Is there no solution?

Audio Players & Recorders - Trekstor - i.Beat - i.Beat jump MP3 Player