Can anyone tell me about CD demagnatizers?

One thing is for sure. They do alter the sound of cd's. How you evaluate this change from positive to negative is purely subjective. For me, it is a must have to be able to clear all kinds of sonic smog. Even the small hand-held Bedini provides sonic benifits that is nothing short of a mojor upgrade! Try it before spending big green on new cables or a new preamplifier...

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.

Try this sixth grade science experiment: Turn on the water in your bathroom sink until you have a thin stream. Now run a plastic comb through your hair rapidly, several times. Now hold that comb near the stream of water and observe that the stream bends toward the comb. Is water magnetic? No, but the comb is plastic and so is a CD. Can a staticely charged CD bend a thin LASER beam? I'm not a physicist, so I don't know. What I do know is that no scientific discovery was ever made by a person with a closed mind. Should cables be kept off of carpets? Ask an EE about Miller capacitance. Keep an OPEN mind.

Hi
Yes they work about 75$ worth if you can wait each time you use it and then redo it after 15 mins!.
A better product that does much more is the Auric Illuminator from Audience. Apply to CD ( you can skip the magic marker)and it sounds bigger, cleaner, and clearer. And you only have to do it only once!

Worth the 39$ EASY.

Mike

I agree Gregm and Micheal. This may be what Sean experienced with the Bedini. Also CD liquid treatments should last a year or more. Not 15 minutes.