Hi, I am using my mac to watch some videos on and have it connected to my tv. That works without a problem and the video quality is great. I am having a problem outputting the audio though. I realise that the DVI output on my MBP carries only video and so intended to output audio from the headphone port to my 5.1 audio system. The only problem I have is that the 5.1 audio system doesn't seem to have a digital input (at least I think thats what its called). Could someone give me advice on how to get the sound out please? I have attached a picture of the inputs on my subwoofer. Ps: I am right in saying that if I have a file that has 'DTS audio' on it then it will give me 5.1 surround sound from my MBP right? Thanks in advance.