I don't recal Ketron ever claiming that to be the case. The SD9 operates in a very different way to Audya and both instruments are on completely different technology platfoms being some 10+ years apart.

You have to keep in mind, the other companies still use the same old fashioned 1980s tech of 1 or 2 bar transposing midi based styles, so its simple for them to convert between models wether its an old PSR8000 or a Genos. Audya and SD9 integrate low compression streaming audio with their styles. As a result styles are not a single midi file like Henni's Yamaha but made up of many, many elements working together; midi and a large number of audio loops.

SD9 will convert any Midi styles from previous models (including Audya) just like the competition, but when it comes to Audya high end Audio styles; its not so simple and each style will take Ketron many hours to prepare for the SD9 format.