Well!! umm!!! I was watching a Blu-ray movie " UltraViolet " the other day and I noticed it was PCM instead of DD or DTS. I have the PS3 hooked up to the HDTV using a HDMI cable for video and Optical for audio. DO I need a HDMI cable for audio in order to produce 5.1 for these PCM uncompressed movies???? If so, How do I go about doing this???