Can anyone tell me about CD demagnatizers?

Aluminium foil is the cheapest!! Close to nothing.
Fold a piece big enough to put the CD in between and slide one hand over the foil. It's so simple you won't believe but it really works. The aluminium just takes the static charge away - nothing else do the pricey units.There isn't actually "MAGNETISM" in a plastic disc.....
Good luck - try it - you will like the result!

I bought Bedini for $150 and sold it for $50. I don't miss it...

feel the same way about the bedini.. doesn't do a thing to the sound for me.. if it does, i must not have good enough hearing..

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."

Sounds like a bunch of hooey to me.