How many do"green edge"an silicon up CDs

Jazzcatlewis. You need to use your own ears to decide if and how to treat your CDs, not someone else's.

I have been using Finyl and find hugh differences on some cd's and marginal on others. If a disk sounds bright at all the it gets a coat. When it "works " well I hear the difference most in the sound stage ans smoothness.cheers steve

Delux, the black marker I use is from the Auric Ill. kit but any indulable ink black marker will work. I agree with megasam, mark only the cds you plan to keep. I have seen the damage alcohol can do to the top surface.

I also sand the outside edges with 300 grit sand paper (3 revolutions) before black marking. This helps to further reduce reflections (Ric from EVS recommended this). The Marigo Mat is used on top of the cd - makes a big differenc as Bob Charlanza says.

Other than cleaning LPs, I haven't tweaked software. But I did use some screen polish for my handheld PDA on a duplicate copy of Joni Mitchell's Blue this morning. First, I could see my reflection in the CD better, like a thin veil had been lifted from my face. Second, it did help the resolution of the music. I could hear the steel of Joni's guitar strings better, and there was more interior delicacy, more air to her voice. The latter is a significant Good Thing, in my book. I really don't want to sit around polishing CDs... but I guess it wouldn't be so bad. Hey, MikeG, I sure hope you also have a tweaky turntable and a collection of old vinyl to take advantage of that industriousness of yours. Cheers.

A friend told me that applying green-edge is not recommended because when this dries up, bits of ink flakes can end up in the lens. Instead he recommende installing green light inside the player which will serve the same purpose as the green-edge. Anyone has done this?

Good thread. I have used two CD tweaks in my system: one with great results and one with minimal (no) result. The great result was with Optrix; the no result was with the Audioiprism green pen.
The Optrix spray brought a remarkable improvement in low level resolution, especially in my older CD's that I thought were poorly recorded. Because they were "poorly recorded" I hadn't listened to in years. With a good cleaning, wow! This makes sense as they were the oldest and probably the dirtiest CD's I have. Subsequently, they were the most improved by the cleaning.
Unfortunately, the green ink didn't fare as well. I put it on several of my reference discs and fired up the old transport (Muse 5 with a I2S connect to a model 2 plus DAC for reference). No difference. I was bummed, mostly due to the glowing promises from the audio store guys. I certainly had high expectations, but no result. I know others who have had good results with the green pen. I'm not sure why my system did not benefit.
An interesting side note is that the green pen contains a proprietary ink from some Japanese company- I heard all this from a Danish 'phile. Anyway, you can get it in ink pens at a store in Denmark called Koch & Tutein. (Needless to say it's not 16 bucks a pen there). I didn't buy any as it didn't work for me in the Audioprism pen. If anyone has the inkling (no pun intended), try it out.
Happy listening.

Todd