You tell 'em, Don! What really confuses me is, why would Yamaha do this? It is generally accepted that Yamaha's built-in keyboard styles are not the best styles available in the arranger keyboard universe (which, like are own universe, is continuously expanding). So it follows that people who purchase Yamaha arrangers are not buying them for the strength of the styles. In other words, the styles are NOT the big draw of the keyboards. The only reason I could see for a company to restrict style trading is to encourage people to buy the keyboards rather than obtaining the styles via other venues. Well, if people were looking to buy keyboards for the styles, they'd go to different companies. Yamaha is basically getting tough about what may be their "weakest link". In truth, Yamaha is better off allowing (perhaps encouraging!) style trading, because if people know that they can get any styles they need, they will go ahead and buy the Yamaha keyboards for their many other strengths, knowing that they can use any styles that they want. Just my two cents.