PSR 900 Vocal on multi pads

[Happyfaze]

Hi.

I have the vocal from a song that I want to use on multi pads, but when I plug the USB stick into my PSR 900, I can't see the files on the USB stick.
I'v tried with midi filses an wave files, but when I go to Multi Pad creator in the menu, the files in the usb stick are not vissible.

What do I do wrong?

[maarkr]

for Audio: did u view pg 54 of the reference manual?  is the audio file WAV format:44.1 kHz sample rate, 16 bit resolution, stereo?  maybe easiest to save the file in the root dir of the USB drive.  Audio Link-> New Bank-> touch Pad number-> select file -> save ?