Can someone explain the difference between the two Toshiba models (other than the chassis)? Also, I understand the RCA player is the same as one of the Toshiba models, but which model? One final question: I have 7.1 speaker setup in my ht. Am I understanding correctly that 7.1 will not work on the HD players or did I misread that or am I just totally confused? I read the Toshiba brochures and it says only 5.1 output.