Articles like that are a dime a dozen...
Whilst I am of the opinion that CD players do sound different from another, I have to say I have never been completely convinced by some of these jitter arguements.
Perhaps much of my opinion comes from my (limited, but more than most people) experience in building low speed (although MUCH faster than audio gear, in the area of <100MHz) embedded systems electronics.
Most of the stuff in these articles is relevant, but just not for "low" frequencies of <20kHz. Sure, you might be able to measure it, but the effects of such things are swamped by room effects, speaker distortion etc.