I've been reading some on-line discussions/complaints regarding the copy-control technology that some record labels - notably EMI - have been using. Aside from the obvious drawback of having playback issues on certain equipment and the inherent problems that go along with that, there seem to be differing opinions on whether the actual quality of the recordings themselves are in any way compromised. I know I have a few CDs that are copy-controlled and I have had absolutely no problems with them, but some people argue that the actual playback sound quality is not as good on CC discs. Do any of you techie-types (TungstenGruven, I'm looking at you!) have an opinion on this? Is the sound quality in any way compromised by the use of copy-control technology? And if so, is it at a level at which the human ear can actually perceive, or is it just something that dogs can pick up on? (From what I understand, EMI has stopped using the technology as of a few months ago - due to customer complaints over fair use, like being unable to transfer songs onto iPods - but of course there are still bazillions of copy-controlled CDs out on the market.)