When I first went to my PC infected zuladen the product to Music up nothing. Only when I lodged the memory card. It was called but the machine has two memory. One in the unit and the memory card up. which I found very disappointing because it is not really so. The battery lasts less than an hour now. Previously he held at least about 3 hours ...... Well, other problems have arisen. he turns from simply so. for no reason. The battery is usually full, so where it can not be. Please do not buy! total waste of money ......