I have the DVDM300, and the 9600 works fine as far as playing music goes. Sometimes it has trouble communicating and getting a list of artists, but that may be due to the size of my music collections. Seems to work best with playlists. I don't think Movies are supported yet. I have a 400 Disc Sony DVD player attached.
Funny, the Escient site doesn't list the DVDM300.
Gary