If anyone out there is interested in recording stereo WAV files using their PSR and home computer, I have posted detailed instructions for doing this at http://pages.prodigy.net/watersj/Yamaha2K/index.html . It is not at all difficult and you can also record incredible vocals with your music.
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!

K+E=W (Knowledge Plus Experience = Wisdom.)