I think what he actually demoes is the Korg Musikant USB Stick by use of the PA500.
As far as I understand, it's also compatible to the other Korh PA's.
- Special Entertainer PCM-Multisamples
- New Entertainer Drum- und Percussionsamples
- New Entertainer Drumkits
- 320 Entertainerstyles
- 128 new Usersounds
- 82 new Pads und Padsequenzes
- More than 600 Songbook titles (My german is bad, so maybe it is Songbook setups)
Great consept, and not that heavy priced either if you look at what you get for te money.

Cheers
GJ