hey ppl im using kd-player nd it works jus as gr8 as the walkman player nd sum how i got rid of da read/write prompts nd if it givs u da error its probably bkoz ur fone duznt support da format,nd if u muv ur files to another folder using the PC it wnt b able to read the file koz it has been muvd so ul hafta create a new playlist,bt overall kd-player is a gud media-player