Hello I saw a video from Jared Beaney of Casio Australia on youtube for AP-650&. at end of video Jared plays a backing track wav audio from a USB Stick http://www.youtube.com/watch?v=FSC9Ygzg_VI&list=PL1fIySn8DGiry9W0JTWHhHF7mj3mDBSWe I have some wav audio tracks Ive generated with Band in A Box , I want to playback on AP-650. Can you please tell me where on the USB stick Jared stored his demo wav file , which folder. and what was your sequence of keys pressed on the AP-650 to play that particular file you demoed. For example, for Midi Files to playback ,I know you place in midis in the USB stick "play" folder , subfolder 'A" thru "D" thanks in advance for your assistance stephen Charlottesville , VA USA www.swingkats.com