Originally Posted by Stealth3si
thx i thought specialized digital cables were needed to pass digital signals from digital output to digital input ...
You have to worry about the cable's signal-handling format onl if the cable is handling very, very high power (e.g. speaker cables), very sensitive signals (e.g. phono cartrdige), very high frequencies (e.g. VGA or HDMI) or very long (e.g. 30 feet or more).
For typical home audio purposes, it is safe for example to use RCA cables and 3.5 mm cables (headphones) interchangeably.
do i need that mono plug or a stereo plug?
Frankly, for digital audio, either can work.
as for the rca cables, should i use a digital coaxial rca cable or will a standard rca cable be fine?
For typical situations, first try to use what you've got. On many occasions I've sucessfully connected digital to a 3.5 mm jack to a portable device or from a a 3.5 mm jack on a PC using a standard 2x RCA to one stereo headphone jack cable. I just tried both RCA plugs until I found one that worked (usually left or black) and taped the other one up so that it wouldn't short out.
I've measured the performance of several systems built both ways, once with the absolutely correct impedance-matched cables, and once with whatever the cat drug in, and the results were the same. It's digital and digital tends to level performance out to a very high standard.