<font color='#000000'>coax digital, component video, analog audio, it's all the same cable!!!
They all use the same standard 75 Ohm coax cable with RCA connectors that is called an A/V or video cable. You know, just like the Radio Shack Gold A/V series that you can get for $9-$15.
So if someone tries to sell you an expensive "digital coax" cable for your digital audio, just say no thanks.
Just be careful and don't buy a cable marked as an "Audio cable" or "Audio Interconnect" that is actually a 50 Ohm cable.</font>