It is my understanding that you cannot play SACD's and DVD-A's through the optical output to your receiver. My question is, how would you hook up your DVD player to your reciever so that it will play them. I have the Yamaha RX-V2500 reciever. Does my reciever not support DVD-A's and SACD's because it has no IEEE 1394/Firewire interface? I'm thinking of purchasing Yamaha's S2500 DVD player but what would be the point if the reciever doesn't support DVD-A's and SACD's?