Sure, I know the theory but in practise there still seems to be audible differences between high & low jitter sources when using such players. So, perhaps, as DJ said it ain't just jitter that is at the heart of the matter - maybe the 1/f noise is varying - maybe it's noise modulation, ala Opus111, maybe it's something else?
Right - and that is the discussion we should be having. Not a blind "jitter is bad, and everything causes jitter", but "what kind of jitter, and how much, is audible, and under what conditions?"
David Kessner has a good perspective on jitter in A Pragmatic Approach To Jitter In Digital Audio.