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Do you demag or destat your CDs/DVDS?

Just curious about these CD tweaks. The Furutech destat machine is tempting at around $350--I like their products. What is the story behind Furutech's discontinuation of their RD2 disc demagnetizing station? I see it was taken up by Acoustic Revive as the RD3, a supposedly improved version. Did it not prove effective by Furutech's standards, or did they let it go in favor of their much more expensive demagnetizer for vinyl and CD? Just wondering if the RD3 does work to improve sound. There isn't much mention of it in the past few years.
128x128jafreeman
geoffkait's avatar
geoffkait
23,365 posts
 
The paint is slightly magnetic, magnetic enough to hear when it's been demagnetized, anyway. The first ion of air molecules on the plastic CD while spinning imparts a static electric charge on the disc best removed with any number of things, anti static spray, tourmaline negative ion gun, what have you.
czarivey
5,946 posts
 
I have zero practical experience of waving broom over antenna and also have zero practical experience grinding anchors.
Should I have any practical experience demagnetizing CDs and vinyl? Figure out and do ya math.
timrhu
2,779 posts
 
Maybe they discontinued the demagnetizers because they expect cds to be discontinued.

And to answer the question, no, I don't demag cds. Seems like a ridiculous idea to me. But for those who find it creditable, enjoy.
mceljo
1,357 posts
 
Even if the ink on a CD contains some small amount of magnetic materials I am still not sure why it would matter. The interface between the player and the disk is a laser. Is there any practical examples of a magnet effecting a light? I can't think of anything. We also can't forget that the digital stream isn't trying to differentiate among millions of nearly identical results, there are two possible outcomes. The A/D conversion and the rest of the analog signal path is a different story.
mceljo
1,357 posts
 
I did a little quick research and it appears that CD players use photon lasers. Photons have no charge and therefore would not be effected by a magnetic field.

Can someone explain what the mechanism is for magnetic ink to influence the playback of a CD in a negative way, or at all? I would guess the ink explaination came up as a response to people first becoming skeptical of the product as it was first advertised.
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