Silver cables and CD players

AudioFeil is right of course. Besides, you've asked this question more or less before and got plenty of good answers.
It is sometimes said, that silver will add to brightness. I myself would not think of using silver cables (quite apart from what Bill has said above) with CD players, especially considering, that you had said in an other thread, that your system tends to be brightish.

"Perhaps we can include quality in the scope of implementation."
Not perhaps, we must in my opinion. More often than not, good design and first class material is spoiled by bad soldering and more often than not this is the case even with expensive cables. Material and gauge alone, though important, does not do it.
For further reading I would suggest: http://www.empiricalaudio.com/ and click "Technical Papers "
on the left side of the screen. It makes good and interesting reading.