Thanks, that is what I thought and what has worked in the past. However years ago when I got my first Denon that had the PLII Music mode I found a number of CDs that sound quite interesting with in surround sound. I suspect that is the best use for this function. Dire Straits Love Over Gold was one particular one that sounded quite good. I read that for full effect you needed the re-memstered version, but I found that the original release sounds quite good in surround as well.