Hello!I have just received a Sony BDP-S270 and have realized that it plays SACD discs. However, it automatically chooses the multichannel layer when available, and my receiver seems to have a problem reading it (although it plays the 2-CH layer just fine).How do you change between the layers of a SACD with this model? Apparently it's not even officially supported, but I thought that if it plays the discs, it should also be able to perform a simple task like switching between the layers.If anyone has this particular model, or has had a similar problem, I would appreciate this info.On a related note, is there any particular reason why my LG surround receiver (TS913ES) outputs the multichannel in a tinny, distorted manner? It plays the 5.1 surround on blurays on the same Sony player through the same HDMI cable just fine!Thanks!