I must admit I am somewhat stumped as to why you are experiencing the issue you are with the Oppo. Once again, as a reminder,as per the Oppo set-up wizard you MUST put the HDMI connection in "advanced" and "bitstream" mode for the receiver to read the signal properly. The S/N is a 1.3 HDMI receptive and that is the only way you are going to get the soundtracks, especially with Blu-Ray discs. The only other way is by the analog connections but that adds more cables and limits your crossover setting capabilities. Unfortunately, the only other way is for someone with expertise and another set of eyes to try to solve the problem. Sometimes it is something very simple. HDMI connections need continuity all the way thru the system other wise they don't work properly.
