Does Digital Coax cable can carry audio 5.1. I want to add up a DVD player to my home theater system. So I was just wondering that would I receive a full digital surround sound experience by connected it via coaxial cable or I nee to buy a more expensive cable. I also want to know that what is the actual difference between Coaxial Digital connection and Digital Fiber Optical connection. Which one is latest and works great. Any suggestion really appreciated. Thanks.