AudioPrism CD Stoplight & Auric illuminator work?

Heard several recommendations in favor of Auric Illuminator so I decided to try it myself. The spray alone hurt the HF attack transients & softened prettty much everything across the band. The marked pen made the HF's quite strident & unpleasant. Combination of the two effects was not what I wanted either, so I cleaned it all off & was much happier with the stock CD. Others have reported that the process worked well enough on poorly recorded discs that they liked it as an occasional band aid for those certain "challenged" recordings.

I burn a lot of compilation cd's for my car. I use the Auric Illuminator on those. It improves the sound of cds in my car. Not as harsh or cold sounding. I don't use it on the originals.

I've used Auric Illuminator on discs that are damaged / hard to read or have very poor "digital" sounding recordings. As a general rule, i don't use it unless the disc has either or both of the aforementioned problems, but it has made discs that were previously unreadable or unbearable to listen to much more usable and enjoyable.

I am not a "believer" in markering discs for multiple reasons and therefore do not use them on my cd's or dvd's. Sean
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I've used Both and have had Positive results from them (remember: these types of "tweaks" make just little audio differences)!
1)By marking the inner circle and outer circle of each disk with the Marker (black)-I have experienced less grain and harshness and a little more OPEN presentation(mostly heard in the upper high freq.)with that treatment. 2)Cleaning a disk with the Illuminator Solvent slightly demagnatizes the surface of the CD and also makes it more reflective for the laser reading of the CD info. Reason for 1)& 2): Reduces stray laser light and demagnatizing the CD will allow the laser, reading the CD info., to have less error corrections(jitter)in the process procedure, i.e. more musical info. Have you thought about the Bendini Ultra-Clarifier (it works also, does about the same thing-I have 1)- read info. at :www.bedini.com
Good Luck and Enjoy!