Can anyone tell me about CD demagnatizers?

Do they make a difference? If so what sort of difference do they make? Are they worth paying say $150 for?

Thanks,

KF

tok2000010-05-2002 4:30pm

tekunda Details Discussions Posts This discussion Message User 127 posts 10-05-2002 at 11:44pm Copy Comment URL Report Comment Edit Delete Aida w, maybe there are ferrite compounds in a cd. At least Furtuch claims it and I hope somone will be able to shed some more light on it: "Furutech claims that impurities in the weak-magnet 99% aluminum alloy of any CD's storage side contain strong-magnet elements of iron, nickel and cobalt -- as does the ink on the label side --that are inductively magnetized while repeatedly spinning inside a player. This is said to inhibit the laser's ability to pick up signal and instead triggers the error correction interpolation mechanism for reduced S/N ratio."
tekunda Details Discussions Posts This discussion Message User 127 posts 10-06-2002 at 12:54pm Copy Comment URL Report Comment Edit Delete Mr. Strassner, the manufacturer of HMS cables rejects all copper for his conductor material that contains more than 6ppm of so called ferro-magnetic particles, becuse more will dgerade the sound. So maybe it is not so far fetched that the aluminium alloy used for cds contain these particles also. Maybe all alloys contain it? So if this was true, it would indeed make sense what Furotech writes. I will ask Mr. Strassner about it and let you all know. He is scientist (physicist) enough to shed some light here.