I have an old DVD player (Sony DVP-S315) that doesn't do any fancy DTS or ProLogic decoding and on the analog side only outputs stereo. It does, however, have a Toslink optical audio output. So my question is: if I connect it up to a receiver that does the decoding (say a Denon AVR-3805), will I get the full surround experience since the DVD player is sending the full digital audio signal over to the receiver ? Or do I need to upgrade ? Cheers, -Daragh.