Pc123v...Glad it worked for you. I'm assuming it is a one time treatment. But you might ask email Robert Spence at Essence of Music to confirm that. I used my Auric Illuminator only once per disc. I actually treated some discs that had the Auric Illuminator on them and still had an improvement with the Essence of Music. The music just has a continuous flow that wins me over. cheers, Bluenose