You should try at some of the sounds I have at http://www.synthzone.com/midi/korg/01w/ as you are sure to find some great ones there. Often they are an improvement on the original factory sounds. They are in sysex format ( .syx ) and can be sent from your PC over midi to your Korg, presuming you have a midi interface for your PC. If you don't I recommend you get one because it not only allows you to send sounds but also to use PC midi sequencing software. And they aren't very expensive. http://www.zzounds.com/item--HOSUSM422 is under $30.