Big vote for Auric Illuminator! Did a side by side with 10 CD duplicates. My wife and I treated one of each pair, shuffled pairs and did the blind test. Treated disk was clearly better every time. Not even close. At first I thought it might be making treated disk louder but DB meter picked up no increase. Music was distinctly crisper, cleaner, more dimensional. Similar to component upgrade in quality enhancement. On like 5th kit from Audio Advisors. (Also put 5 1/4 inch spokes of marker from center to outer rim on topside. And I color in center top and top outer rim) (Haven't done blind test on those actions however...need too)
