CD de-magnetizer, good idea or snake oil ?

Oh, my MRI showed a big hollow between my ears, maybe mine was already demagnetized and didn´t show?
No, you're just on a higher level.

Aliens take a Russian, an American and a ... (fill in the nationality which is, falsly!, regarded as stupid in your country) to study.
They take a look into their sculls.
Russian's is cramped with tubes - Not bad!
American's has a single chip - Nice!
...'s has nothing but a thin silver wire across - WTF???...Snip!, and the ears fell off.
 
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Er, I was only joking about you being mad about magnetising your CDs, but I reckon you use the "repeat all" function of the CD player to loop the CD while you're out of the house.

Not loud enough to annoy the neighbours, if any. Just loud enough so a burglar at the door can hear the barking.

P.S. I don't have such a CD, but they're available at online auction.
 
Er, I was only joking about you being mad about magnetising your CDs, but I reckon you use the "repeat all" function of the CD player to loop the CD while you're out of the house.

Not loud enough to annoy the neighbours, if any. Just loud enough so a burglar at the door can hear the barking.

P.S. I don't have such a CD, but they're available at online auction.
These days you can download and make your own CDs of that stuff.
 
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Actually there is something that happens to the aluminum layer in the CD when place in strong AC magnetic field. A current is induced and may heat up some small deformations.

There certainly are some folks who have noticed a difference before and after being demagnetized!

Possibly a variation of the Munchausen effect.
Yes, the microwave changed the CD completely.