The newest member of the l’Art du Son family is a sprayed-on treatment for optical discs that both cleans and conditions the surface of CDs, DVDs, or SACDs. We have performed tests with multiple discs (one left untreated and the others treated with one of a few different fluids), where we listen to the untreated disc and then the treated ones, and in every case the l’Art du Son gave the best results in terms of transparency, dynamic agility, and a sense of organic smoothness and lack of fatigue more often associated with analog disc playback. In the latest The Absolute Sound (issue 155), Harry Pearson runs a comparison test of l’Art du Son optical cleaner and proclaims that it is the one to buy. If you order and try some of this CD/DVD/SACD cleaner/conditioner, I am confident that you will feel the same way.