Liquid CD treatments?

The Auric Illuminator makes a big difference IMO. I actually had the opportunity to compare the RealityCheck copy CD vs. the Auric Illuminator CD and found the Auric to be much better, more open and natural with better detail. I've recommended it to others and the response has been nothing but positive. Going into it, many of us felt it was going to be "you know what" but were surprised with the outcome.

I know that there will be many differing opinions on this, but I have used Auric Illuminator since it first came out and have had good luck with it. It has not damaged the CD's and it seemed to open up the sound and improve the dynamics.

Heard good things about Shine-Ola:
http://www.needledoctor.com/s.nl/sc.10/category.-110/it.A/id.2557/.f

What is your setup?
Many systems with digital front ends sound as good or better than high end analog these days, but there are many factors that contribute to the overall sound. Every little thing seems to matter.

As for CD treaments, Shine Ola is highly regarded as actually reducing read errors and enancing sound.

Having tried a few of these treatments it is safe to say they are definitely for real.
I also use the Marigo Lab 3-D Signature CD mat routinely, although a cheaper way is to use Herbie's Grungebuster CD mat(s), to give you confidence in the ability of a tweak to instantly upgrade the listening experience.
Newer versions of liquid CD treatments are released even before one can use up container contents of an earlier version. One of the classic liquids in this category is the new and improved Auric Illuminator, and there is no question that it enhances the CD experience. You can initially try one "well reviewed" product, but don't expect unanimity from our diverse Audiogon membership on which is the only one to try first.