Tom,

You are correct. The styles in there are from the USB pen drive and not included when purchasing a new Audya - what is included is the new Operating System 5.0. You can leave them as they are as they cause no damage to the instrument. If you want to delete them, go to DISK - SYSTEM - FACTORY STYLES and delete the styles which start with the "&" sign.

Dusan ... all the updates from Ketron (Operating System, as is the case with the other manufacturers) are for free. As for the new styles and sounds, everyone who wants them purchases them regardless of when you purchased your AUDYA (even other manufacturers like Yamaha do this). If you were to buy a new Tyros 4 today, it will NOT include the Yamaha Premium styles which others have to purchase in order to obtain, however as they update the keyboard with newer operating systems and fixes, these are offered for free.

Hope this better explains it.

Thanks,