Jea48 - Here's a little order of magnitude experiment for you to do. Find a way to isolate a CD player from your system such that you have no physical connection with it from your listening position. Then have someone pick the CD player up and move it around while you're listening and see if you can tell when the CD player is stationary and when it is being moved. Obviously, the goal isn't to make the CD player skip or identify connection issues from the cables being moved. You should use a long digital connection to isolate the disk to laser interface from the A/D conversion. If you listen for a reasonable period of time and have no way of telling if the person is in control of the CD player has "left the building" or not you will not be able to tell the difference if you're being completely honest with yourself. You must be able to tell when the CD player is picked up and set back down. Take note of the times and compare your notes after the fact with the other person.
Moving the CD player around will, in my opinion, have a much more significant effect on playback than the magnetic ink on the disk will have. If you can't hear the more significant one, then you cannot hear the less significant one.
