My family and i have just had our holiday of a life time in Jamaica. On returning home i down loaded the softwear that came with my new video camera to my computer and tried to download the video of our holiday. The picture is great but i have no sound when playing back on computer or when i burn to disc. The reason for this is that i dont have Dolby Digital 2 Channel Decoding instaled on my computer. How do i get it installed can i download from microsoft please help.