[mdabb]

Not sure why a CD would need to be demagnetized? Ever hold a magnet to an aluminum pop can... Products like this do not mechanically alter anything for better or worse on the disc itself or once the CD is inside the player. 

We can use our ears to decide what personally sounds good to us. But we can not and should not rely on our ears to prove these types of claims. Want some good insight.........

Watch:
http://www.youtube.com/watch?v=BYTlN6wjcvQ

[Bear]

I recently received a "cutout" CD, and tiny plastic fragments from the punched out notch in the spine were stuck to the CD surface by static electricity.
 
I was curious, so I took a paper-thin sheet of packing foam and cut off some small bits.  I took a CD from my collection and held it above the bits, and they jumped to the surface of the CD like magic.  Or like static.
 
I suspect that the spinning of the CD might accumulate a small amount of static.  Now whether static electricity can affect CD laser playback, I have no idea, and I'm one of the last people to believe in this "horse hockey".
 
But static does exist on plastic optical discs.  I'm just sayin'.

The above is an example of static electricity...not a magnetic field.

Static Electricity:   http://regentsprep.org/Regents/physics/phys03/aeleclab/ballrub.htm

Magnets:   http://www.howmagnetswork.com/

FWIW
 

[steve k]

Not sure why a CD would need to be demagnetized? Ever hold a magnet to an aluminum pop can... Products like this do not mechanically alter anything for better or worse on the disc itself or once the CD is inside the player. 

This is the argument for de-magnetizing. I'm just the courier here.  Please don't stone me too.

http://www.acoustic-revive.com/english/rd3/rd3_01.html

[mdabb]

This is the argument for de-magnetizing. I'm just the courier here.  Please don't stone me too.

http://www.acoustic-revive.com/english/rd3/rd3_01.html

No stoning here from me  Once learning how a CD and CD player work there is nothing this product could do that will translate to "better" sound quality.

[sts9fan]

If you don't believe in it your point has been made. No need to post.

[art]

Pat, there are no true 75 ohm RCA connectors, but I can properly terminate any RCA connector and any cable, i.e. 50 ohm, 75 ohm, 110 ohm, etc., and make it work in a 75 ohm interface. And that's just because I know how to do it

I know, as well. So what? Your site says:

"Unique RCA plug connectors, closest to
    75 ohm in the industry".

Sticking a matching network into the assembly is not the same as a 75 ohm connector.

If you want to set yourself apart as an "expert" (which is fine by me, really), I only suggest you play closer attention to semantics.

My point has been made, and I wish you all the success.

Pat

[mdabb]

If you don't believe in it your point has been made. No need to post.

Is there any reason I should be excluded from having a rational and respectful conversation? I never thought I would be discouraged from posting just because I have an opposing view point  . These threads are gonna be real short if people (forum members) aren't encouraged to talk about things. The key to any good conversation is respect, and I had the utmost intention of being respectful (as demonstrated). Believe me I know how certain topics can get blown out of hand, but one sided conversations are usually not very interesting.

If it is your wish that I move along, I will abide.......... I do respect that it's your house. Thank you for hearing me out...

[srb]

Is there any reason I should be excluded from having a rational and respectful conversation? I never thought I would be discouraged from posting just because I have an opposing view point.

If it is your wish that I move along, I will abide.......... I do respect that it's your house. Thank you for hearing me out...

I don't think so.  That opinion is not necessarily representative of all who are participating in this thread.
 
And so far no one has stated that it made their CD's sound any worse, only that they heard no difference.  The same can't be said about cable discussions.
 
Steve

[DaveC113]

I heard a Furutech demag device at RMAF a few years ago, using a cd I brought in.

I didn't believe it and thought the guy was full of it as he went through the process.

The result was a quieter background and better dynamics, and this wasn't a subtle difference. Lots of people agreed there was a major difference.

Now that I use a HDD for audio playback, I'm not worried about it. 

[sts9fan]

Is there any reason I should be excluded from having a rational and respectful conversation?

No there is not.  I was talking about "+1" posts with no added value.  Honestly I have no interest in discussing moderation philosophy. 

[jneutron]

This is the argument for de-magnetizing. I'm just the courier here.  Please don't stone me too.

Thanks for the link.

However, there is actually no information there which either explains or justifies demagnetizing a CD or DVD.

The closest they get to any information is this:


""From information that we have studied it is easy to see that before a demagnetizing process has been carried out, it is impossible to obtain the highest quality information from a CD or DVD ""


Note that there is nothing there which would explain why demag can have any effect on the optical path or reflection of the laser.   I'm sorry, "from information that we have studied" doesn't float my boat.  They might as well have stated "pay no attention the man behind the curtain".

Cheers John

[konut]

A couple of question, if you don't mind. Will these demagnetizers remove the static electricity build up from the CD/DVD? Is it possible that static electricity somehow affects the electronics in the CD/DVD player?

[turkey]

A couple of question, if you don't mind. Will these demagnetizers remove the static electricity build up from the CD/DVD? Is it possible that static electricity somehow affects the electronics in the CD/DVD player?

No, a demagnetizer will not remove static electricity from a CD. As noted by someone else in this thread, a magnetic field and static electricity are 2 different things.

I haven't see any proof that CDs typically have enough of a static charge while being played to affect anything.

[sts9fan]

Just so we are clear again.  Magnatism and static electricity are not the same thing.  They even have different names!

[konut]

If the static electricity attracts enough dust, it could affect the error correction circuitry. No?

[konut]

Just so we are clear again.  Magnatism and static electricity are not the same thing.  They even have different names!

Different, yes. They both have the movement of electrons in common though.

[S Clark]

If this works, it's not due to static electricity.
What little effect (nearly none) magnetism would have on a static buildup on plastic (and static is a surface phenomenon as the electrons don't move) would be orders of magnitude smaller than simply wiping a damp microfiber cloth across the cd. 

But interestly enough, I have a special running on custom designed Platinum Kryptonate infused Holy Sea SuperMicrofiber^TM towel with a bottle of extra blessed, extra pure Holy Water to dampen it with.  One wipe is guaranteed to make you more handsome, your wife and kids more appreciative, and your cd's more musical.  This special offer can be yours now for just $39.99 cash.   

[DaveC113]

I'd also put out there, that it is possible to verify a rip to a HDD is accurate, and it can be accurate without using a demag device, so there must be some other phenomenon happening besides not being able to read the data accurately.

For me, I know it works, but I have no clue why it makes an audible difference...

[Dan Banquer]

CD Demagnetization is old hat, but demagnetizing your hard drive is the latest.   

d.b.