One of the many graphs Nordost and Vertex displayed at their research presentation was of time-domain error in a CD player, ie, the difference between the data on a disc and the output of the CD player. It ain't pretty. Other graphs showed reduction in error with the addition of cables, supports, and power products (specifically, Nordost's Quantum). All these graphs will be downloadable from the websites of Nordost and Vertex EQ within a matter of weeks.