Fact or fiction?

  • Thread starter Thread starter MCI2424
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Of course, I always demag my CDs and DVDs before use! The Tourmaline Negative Ion effect really does wonders too. And I think you will find this interesting: "Manufacturers had realized that demagnetization enhanced the capability of Software." I made sure to demagnetize my Cubase installation disc before reinstalling it on my new computer recently; now I can use twice as many effects, I haven't even found my track limit, and everything just sounds better!
This got me thinking, and lately I've been working on a way to demagnetize my car's fuel injection system to increase MPG and save money on gas!
 
If you have to ask.... ;)

Demagnetize vinyl???

"Aluminum is a weak magnetic material, so it is easily influenced by magnetism. " Ummmmm.....what????

"It completely demagnetizes optical discs such as CD, CD-R, DVD, MD, and it is easy to use." Next they'll be saying that books will be easier to read if you demagnetize the paper. What the hell does magnetism have to do with an optical laser? Nothing.

G.
 
reminds me of those "Bass rings" they used to sell for CD's. I always got a kick out of that.
 
SouthSIDE Glen said:
Next they'll be saying that books will be easier to read if you demagnetize the paper.

G.
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Well, it won't make it easier to read, but it sure does bring out the fine details when putting the paper through a scanner! Technicians in the medical field have already been using a similar technology built-in to the scanners used for patient charts, doctor notes, etc.
 
SouthSIDE Glen said:
What the hell does magnetism have to do with an optical laser? Nothing.

G.
Click to expand...

Sure, but green markers have an amazing effect on optical lasers.
 
I'd want to hear it. Sceptical, but willing to be surprised. I'd ahve to hear it though.

It never would have occurred to me that an optical disc would have a problem with magnetization. Just doesn't seem like a factor. I have to say that I don't think the page linked to makes quite a strong enough case to convince me on the merits of the argument itself.
 
There is no end to what the snake-oil con men will attempt to sell to audiophools...
 
I just ran this past some Optical Engineers here a work. They seem to think that it is snake oil on the surface but posed the possibility that because of the track density on cds and dvds these days, it is *possible* that light would be bent with even a small magnetic field. The key here is that the amount of "pits" on today's media (especially dvds) is becoming so dense that magnatism problems are certainly possible especially since dvds go down like 5 layers today.

These guys are phDs in Optical Engineering and only pose theories.

Who knows?
 
Here I have been lining the outer edge of my CD's with a green marker to contain "stray reflections", and sitting a brick on top of my CD player to reduce "jitter". But I see that I still have flaws in the audio to deal with! This is a MUST HAVE!!!














































:rolleyes:

From that website:
Why do optical discs, such as CD, become magnetized? First, it is thought that an iron ingredient contained in the printing ink of the label side of the disc is one of the causes of magnetizing discs.
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Any time I see a statement containing "it is thought", red flags appear before my eyes that what is to follow has almost NO scientific backing and can wholly be dismissed as more audiophile BS!!! It might have been "thought" at some point, but was never "proven"!
 
Ford Van said:
Any time I see a statement containing "it is thought", red flags appear before my eyes that what is to follow has almost NO scientific backing and can wholly be dismissed as more audiophile BS!!! It might have been "thought" at some point, but was never "proven"!
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They treat the magnetization as fact, but the reasons for it as speculation. I think that's why I wasn't convinced by their argument, they didn't convince me of the core premise: the magnetization of optical discs.
 
I'm a bit of an audiophool myself having heard differences in cables for instance.

But this looks like a load of crap although the speculation that at such density magnetism could bend the light enough to have an effect is at least intriguing. It is know that light is affected by magnetic fields although I've always seen that in relation to astronomical measurements where we're talking about great distances and much stronger magnetic fields.
 
Reggie said:
Of course, I always demag my CDs and DVDs before use! The Tourmaline Negative Ion effect really does wonders too. And I think you will find this interesting: "Manufacturers had realized that demagnetization enhanced the capability of Software." I made sure to demagnetize my Cubase installation disc before reinstalling it on my new computer recently; now I can use twice as many effects, I haven't even found my track limit, and everything just sounds better!
This got me thinking, and lately I've been working on a way to demagnetize my car's fuel injection system to increase MPG and save money on gas!
Click to expand...

I just de-magged my chick.

She's making my lunch as we speak!
 
I hear DAV is coming out with the world's first Demagnetized mic pre.

They just hired Big Ray as their spokesperson / lead endorser of the product.

All the dumbasses are falling over themselves to buy it as we speak.

.
 
While light is itself electromagnetic radiation, it is extremely high energy radiation. Add to that the fact that we're talking lasered light which is extremely high energy coherant radiation, and I'd think you'd have to be talking extremely large electromagnetic fields, on the order of astronomical levels like Lt. Bob mentioned to have any signifigant effect on it (even then, I believe gravity is the major light bender out there, not so much magnetic fields.)

Remember, all the laser is doing is reading a pattern of ones and zeros. For a magnetic field to have an effect on the ability of the laser to read the disc, it would have to be strong enough to actually affect the laser's ability to read those bits; i.e. it would have to deflect or disperse the laser beam by an amount equal to or greater than the pits in the surface of the disc themselves do. This would take a WHOLE LOT of energy to accomplish; far more than any incidental magnetization of the surface could impart.

And that's even assuming that such magnetization even exists to begin with, which is as FV pointed out, on the theoretical side at best ("it is thought..." is right up there with "[your favorite network here] News has learned..." as a wonderful euphamism for "we heard an unsubstantiated rumor that...")

G.
 
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