I bought one of these systems from Best Buy and I can't get it to play DTS. DD 5.1 works just fine. I have the HTB-505 (actually the receiver model is VR-606) hooked up to my panasonic RP62 via the digital optical connection. When I switch the RP62 to output a DTS signal, the Kenwood doesn't detect it at all and I get no sound. I tried the films Gladiator and Reign of Fire so far and both of them work just fine with DD5.1.