Machina Dynamica New Dark Matter CD and Blu Ray tray treatment?


This is a set of adhesive-backed thin plastic pieces that one attaches to one’s transport or player disc tray. The disk rests on them during non-spin mode, but presumably don’t touch the applied thin pieces during playback mode. The company says the new Dark Matter pieces reduces background scattered light from reaching the photodetector, thereby improving performance. 

Anyone tried this product? Please specify transport or player if you have and your impressions. 
128x128celander

Hi All

part one NDM

A while ago Geoff was kind enough to send me some NDM for review. I was excited to get the product as this was the first review item I ever received from Geoff directly. Other product of his have been in some of the systems of some of my clients and I got to preview them there. I didn’t know who Geoff was when I previewed some of his goods before, so this time around was more meaningful.

First off I want to start by saying, I would have needed about 10 kits to do a full reviewing.

I think the main question on everyone’s mind is "does this work"? And from this empirical tester the answer is yes. Does the product work the way Geoff describes it working? I really don’t care. I deal with so many audiophile-ish descriptions that come from directly quoting wiki or other internet sites that for me actually doing for yourself makes things more practically acceptable and less fluff. I am hands and ears on and the rest of this stuff is being studied by professionals in labs with qualified testing equipment and years of experience, so they to me are the go to folks for the technical explanation side of things. Audiophiles sitting at their test benches are cute, but that’s about it when it comes to the real deal in tech talk.

I’m breaking this up in several posts.

MG

As a guy having a Ph.D. in Biophysics from Harvard, I find it nice being marginalized by one who is not.
And you have the attitude to go with it. 😁

You mean the absorption spectrum for phytochrome on this page?

https://en.m.wikipedia.org/wiki/Phytochrome

NDM part two

Technical Talk

My first exposure to Geoff was on the Stereophile forum where he and May Belt were tag team partners, and not tag partners for all things positive or agreed upon sadly. Up to that point I had never been in such a combative, at times even hostile, setting in this hobby. These two are the masters of audio talk jousting. Why some of you here even enter into battles with Geoff is a mystery to me. That tech-talk battling for me ended when I asked both May and Geoff about their test labs and listening systems. May Belt all out refused to talk about any system and Geoff said he hasn't had an in-room system for many years. This for me is an automatic disqualifier. If I have a studio project I'm asked to work on and I show up at the engineers place and it's an empty room, no studio, no artist, it's going to be a short recording session.

For me tech talk is accompanied by a lab. If I'm talking to Bob Hodas for example we have a testing computer lab, a system and reviewer taking notes, charts and pictures to document. If I'm in my studio, I have my live room, control room, playback reference room and mastering room. Practical application for me rules supreme. So I need you guys to understand that when Geoff uses LIGO as his main reference for isolation it doesn't go very far with me. LIGO studies vibratory structure and supports the opposite from isolation. So Geoff on my tech-tech grading scale is not exactly existent.

MG