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
I do need more of those double-sided stickies. I plan on testing the NDM product on my Oppo front-loading Blu-ray player. 
cant comment : as “they” say - if you have nothing good to say - say nothing...
ptss1,669 posts04-03-2019 6:06pmcant comment : as “they” say - if you have nothing good to say - say nothing...

>>>>>Long time no see. When did they let you out?
mrdecibel1,345 posts04-03-2019 6:28pmThey should never have discontinued the green pens. Art stores have them.

>>>>Green pens, sadly, only address 25% of the stray laser light, the red part. The other 75% is invisible, which is not (rpt not) amenable to the color green or any color. That’s why NDM is such a breakthrough. It absorbs the red part AND the invisible part. Hel-loo!
I have a spare Fanuc in the machine shop, I can program it to mark up CD’s with a green pen... the problem I see is what with machine learning, Fanny will soon revolt doing a senseless task...
celander OP1,175 posts04-03-2019 6:32pmYep. Marking up some 3,000 CD’s is my version of fun.

>>>>Totally unnecessary with NDM, obviously. It was unnecessary before actually, as my Codename Turquoise CD tray overlay was better than the Green Pen, replaced by NDM.
I have been green penning since the beginning, but admittedly, I listen to the cd first to determine if it needs the treatment. Geoff, care to send me a kit, Gratis, as we are old buddies, lol. Enjoy ! MrD.
BTW, someone on page one mentioned he was using a front loader and was not " clamping ". Front loaders do have a clamping mechanism, fyi. Geoff, udaman ! Enjoy MrD. !
Friends?
What are they?
Are they like having fun?
I had fun once......
It was awful......
Someone here (but I don’t want to mention any names) whose moniker starts with an f PM’ed me asking if NDM was a quantum type product. Gentle readers, that actually is an interesting question, while I admit it does appear somewhat trollish. My answer was, it all depends on how you look at it. Now, I’m not the type of guy who throws the word quantum around frivolously. I Design and Manufacture many products that work quantum mechanically, five or six such products currently at last count. But I digress. Inasmuch as NDM involves absorption of light, both visible and invisible, is probably best described as operating by classical physics. Plus, the CD laser itself is a quantum device, a Quantum well. But the lines between quantum physics and Newtonian physics are getting rather blurry. So, I wouldn’t get too hung up on whether NDM is one or the other. I prefer not to let the Cat 🐈 out of the bag (as it were) as to how NDM works. It’s all very hush hush.

Einstein never really got on board the quantum mechanics train 🚂 God doesn’t roll dice 🎲 🎲 . But he won the Nobel Prize for his early 1905 paper explaining the Photoelectric Effect, including the idea of quantization of light, a precursor to quantum mechanics 🧰. Ironic, huh?

In 1887, Heinrich Hertz[2][3] discovered that electrodes illuminated with ultraviolet light create electric sparks more easily. In 1900, while studying black-body radiation, the German physicist Max Planck suggested that the energy carried by electromagnetic waves could only be released in "packets" of energy. In 1905, Albert Einstein published a paper advancing the hypothesis that light energy is carried in discrete quantized packets to explain experimental data from the photoelectric effect. This model contributed to the development of quantum mechanics. In 1914, Millikan’s experiment supported Einstein’s model of the photoelectric effect. Einstein was awarded the Nobel Prize in 1921 for "his discovery of the law of the photoelectric effect",[4] and Robert Millikan was awarded the Nobel Prize in 1923 for "his work on the elementary charge of electricity and on the photoelectric effect".[5]

For someone with the name 'quest' in his UN, Im betting you never even tried NDM, but somehow feel entitled to make this comment. I call BS on YOU SIR
I’m glad falconquest opined about Dark Matter, as opposed to Geoff’s product, New Dark Matter. 
I’ll go out on a limb here and say of all the Machina Dynamica products out there, the dark matter and springs have the best chance of actually doing something other than playing with your mind. But I must qualify that by saying the MD bar in general is set pretty low.

Also, even for those, if one is impressed, they might try rolling their own and comparing just for kicks or maybe even to save a few bucks.

Also if the MD products do not work, one is only set back 2 or three digits max, not too bad on the grand scale of all things high end audio.

Personally, I will pass. No offense.

Out on a limb? I think you mean out on a ledge, don’t you, Moops? Don’t be so gloopy, Moopy.
Full disclosure: my previous product that addressed the invisible infrared scattered light was Dark Matter. That’s why I call the new product New Dark Matter. That was the old one. This is the new one. My other product Codename Turquoise addressed the visible red scattered light. There are both. Visible and invisible. The dude whose moniker starts with f had also inquired as to how I capture Dark Matter. I told him I surround it and tell it to come out with its hands up. Was that being too much of a smart a$$?
"

black

  1. (of an object) Absorbing all light and reflecting none; dark and hueless."

GK what makes your Dark Matter better than other black things one might put in there or in some cases of good design are probably already there to start? Every CD tray I recall has been black to start with, so a good start there.....


Just wonderin....
Rather than me explain it how about we make that a pop quiz? Free NDM to the first one to get the right answer. 🤗


Its the reflected stray light that these bit are designed/claimed to absorb.  
What method was used to measure/evaluate scattered invisible light inside a working (CD is rotating) CD player before and after application of whatever is being talked about here?
rpeluso535 posts04-04-2019 2:36pmIts the reflected stray light that these bit are designed/claimed to absorb.

>>>While that’s a true statement as to what NDM is designed/claimed to do it doesn’t answer the question regarding why the color black won’t work just as well.
Well, given my limited background about how CD players work (as I am sure Geoff can attest given my questions to him via PM), I’ll take a stab at this answer.

The laser has a different wavelength range than the photodetector, wherein the photodetector can detect both visible and invisible light. As a result, the invisible light (UV and IR) is picked up by the photodetector, thereby obscuring the data stream attributed to the visible light. Presumably, this additional light info might not be corrected by the Reed-Solomon error detection/correction codes.

The NDM squares can absorb the invisible light, removing it from being detected by the photodetector. This improves the fidelity of the photodetector in capturing a better ratio of disc-related reflected light to unrelated reflected light, thereby enhancing the photodetector’s resultant signal to noise ratio. 
Has absorption of invisible light by these NDM squares ever been confirmed or it is just a postulate?
I think it’s called deductive reasoning. Something terribly lacking in most every day discussions.
Celander is close. Very close. Yet so far. 😁

Hint - If the laser wavelength was different than the photodetector wavelength the whole thing wouldn’t work. Both have nominal wavelength of 780 nm. 
Well, I derived all that from your website. So I guess you are equally far away.

(Deductive reasoning..)

PM me the quiz answer. I’ve shot my wad on this answer. No do-overs. Thanks, Professor. 
Where did I say the laser and the photodetector had different nominal wavelengths? I’m speaking about ranges.

The photodetector must have the ability to detect side-band wavelengths outside the “nominal wavelength.” Otherwise, it could not detect your so-called invisible light. 
You’re kidding, right?

This is what you said, not me.

”The laser has a different wavelength range than the photodetector, wherein the photodetector can detect both visible and invisible light.”

In any case, you didn’t answer the pop quiz, which is why the color black wouldn’t be just as good as NDM.
God gave you two ears and one mouth for a reason.

Hey, this game is fun! 🤗
Because black is within the visible light range rather than the invisible light range. The whole point is to remove the invisible reflected light from reaching the photodetector. Or so your white paper claims. 
In fact, GOSO works as good as, if not better in some CD players, than NDM. Mechanism of action has not been confirmed, either.
Mine arrived today, will listen before/after, anticipating something good here.  I have 3 disc spinners (in 3 systems), if I hear what I hope to hear I'll request two more sets.  

celander OP1,194 posts04-04-2019 5:57pmBecause black is within the visible light range rather than the invisible light range. The whole point is to remove the invisible reflected light from reaching the photodetector. Or so your white paper claims.

>>>>No, the whole point is that almost all of the CD laser light AND the scattered light is invisible infrared. Only a relatively small percentage is visible (red). That’s why the black tray and the Green Pen are relatively ineffective. NDM removes visible and invisible scattered light. It’s the problem nobody knew about. That’s the whole point.
Ignorance that borders on stupidity never ceases to amaze me, especially in hi-end audio

Arguing against when it is clear noone of those arguing plunked down $40 to see/hear, when there is nothing that cna be purchased to improve hi-end for $40, points to thr futility and stupidity of those who think they have a clue. 

I for one am thankful for Geoff's willingness to struggle on in the face of such abject stupidity  
Huh? Call me stupid, but I have no idea what you are talking about.

I bought one of these kits, seeing no harm in trying something so inexpensive that had the potential to improve SQ of my system. Not many tweaks can bring about such improvement for the money expended. So the risk/reward ratio is very high. And if one does not find it to "work" to his/her satisfaction, then it’s not a great financial loss.

But any modification that affects signal processing at the very beginning point of a given source is something that should not be ignored. And the inexpensive cost of the kit makes the decision a low-barrier no-brainer.
Hey, tweak1, let’s try to keep this civil. These outbursts of yours are not constructive.