any comments on demagnitizing cds ?

And plastic is demagnetized how?
Plus the ones and zeros layer is either aluminum or gold of which neither are magnetic.
Please...

The definition of "demagnetization"... To reduce or remove magnetism or magnetic properties... sic go back to my original question

In a transformer what is the "non-magnetic copper" (no sh*# Sherlock) wound around? Turn off the electricity and what have you got...
Inductive heating... and this is relative to demagnetization in what way?
None of the allegories are germane to the subject.
Or is it being implied that this "demagnetizer" is subjecting the CD to an induction field? And after "demagnetization" occurs the physical properties of the CD have been altered?
A quick test... when injection molding polycarbonate the molecules align in a manner where stress is molded into the part. Look at an injection molded clear polycarbonate part through a polarizing filter. (polarized sunglasses in good light will sorta work) Where discoloration (rainbow of color) is seen that's molded in stress.
Will this demagnetizer "stress relieve" the CD?

The only thing this so called "demagnetizer" could do is remove static electricity.