CDs And Green Markers. Please Don’t Laugh.


I’m sorry. I apologize. If anything has been done to death, it’s this. And yet . . . 

I was pulling “Darkness On The Edge Of Town” out of my CD player the other day and wondering if Bruce had really made peace with his father when I noticed the edge of the disc was green. Looking through my collection, I found a bunch of them so marked. “Let It Be” by The Replacements. “Murmur.” Stuff that came out during the brief period after the introduction of the CD and before the green pen became an embarrassment. 

I should give a quick kudos to the albums that have survived countless culling that keeps my active collection at about 500 discs. Discs that are easily stored because I always take the discs and printed media out of the ridiculous plastic “jewel” cases and put them in DiscSox, an invention I can’t believe has been overlooked by the Nobel committee. 500 discs fits into five trays from Office Depot and the whole collection takes up about 16x30 inches and the height of a CD. I can’t imagine living with the original packaging. 

I never A/B’ed any of the albums with the green marking. Never looked into the science of the green pen. Back in the day, it was cheap, it was easy, and it was supposed to work. Why not try it? When it became a laughingstock, I stopped. 

But like skinny ties, I assume that green markers have come in and out of vogue many times since 1982. I love a good tweak and wonder if anyone has justified the use of the green marker. I’m not looking far a scientific explanation. Herbie’s Super Black Hole actually works but without anything close to a reason for doing so. I’d be thrilled if the same was true if green pens. 

Besides, those looking for science in audio forums should familiarize themselves with a priori reasoning, and the problems attendant upon it. 

Where have I gone? Why so much wandering? Is it because the initial question is so stupid? Still, I’d like to know: Has anything happened since, say, 1985, that would make greening the edge of CDs sensible?

If not, I promise to apologize and slink quietly back into the darkness.

paul6001

I use NOVUS.

Long ago there was a $495.00 machine ()AudioDesk CD Sound Improver [Lathe] that would cut the edge of a disc concentric with the center so no vibration and at a 45 degree angle. Then you treat the edge with a black pen. Worked great. . . .... if you got the time.

I've used the the stoplight green marker for years. More like paint dispenser so be carful. or you'll find as much on your finger tips. But it does wipe away if spilled on the playing side of the cd. One can press down on something like a piece of paper to get the green paint to replenish the felt tip if left unused for a time.

However it supposed to work, it does. I've noticed less high frequency glare and harshness, more smoother highs. but it wears out along the cd edges over time. so I tried something.  An indelible ink marker. it too helped with the highs as well.

So I've marked over the green paint with the black marker ( after the green dries of course) and it works by putting a protective layer over the green. So there's no wearing out.

Green marker along the CD's edge, cleaning with Armour All and other "tweaks" surfaced during the late '80s and early '90s.  None of them made a wit of difference.

@cdc  Just scrolled down and saw your post. Yes it is time consuming and messy, but well worth the time and effort

I should add I also have a German CD Edge Cutter. First heard it at a Chicago audio show at least a decade ago. My biz partner brought his cd radio, so we had them cut a disc of which we had a copy and played it in our room. Amazing, even played on a $30 CRAP BOX