leezone,

Once you purchase the AUDYA 4, put it side by side with an AUDYA which has not yet been updated with the USB Pen Drive. Then check out the following voices and styles (which I will provide you then)...

* Current voices where re-mastered (most).
* New voices added.
* Current styles re-balanced and revoiced (most).
* New Live Drums added.
* New Live Guitars added.

Thanks,

AJ