I currently have cyberlink powercinema installed on my pc, but I dont get any options to enable 5.1 in the audio menu,, looking through their site it looks like an audio upgrade package is needed to enable dolby 5.1 which costs $25 ... I have a cambridge soundworks 5.1 decoder and speakers hooked up and I know its working ok as ive had my 360 outputting 5.1, there is a dolby digital indicator but it just dont come on when I watch dolby movies?? can anyone recommend a good player which is capable of dolby 5.1 a free would be great