Hi, i just converted a part of an mp3 to a wav file and put in on my nokia 6600 via Bluetooth. i thought that the 6600 can play wav files as ringtones, but when i tried to play the file using the recorder/playback function, it wouldn't play at all. it can play midis as ringtones. am i wrong in thinking this, or have i missed something? do i need a special player?