fluffers:
The AudioDharma is simply the best cable conditioner currently available.
I think it is very much worth the price. The conditioning Cd's are useful but in no way should they be considered more than a supperficial tune up.
To really maximize a system I use the AudioDharma 3 x a year, the Hagerman FryCorder 3-6 x a year, and a Cd treatment disc daily.
The Frycorder treats the wires in the house's A/C circuit back to the transformer.
The AudioDharma is the most powerful unit available and can also treat the ground wire. No other unit does this.
The treatment CD is a quick dusting of the system (mine is the Isoteck CD).
The above approach is the most comprehensive one I am aware of.
David Pritchard