Are you sure you're not reading about cassette players!
Why demagnitize an optical reader?
I've read numerous times now that folks state to demagnetize a CD or optical disc before playing it for best fidelity and accuracy. I don't see how an optical device, which is non magnetic and made from non magnetic materials benefits from a demag process. Does anyone have any information to support this? Other than hype, of course.
Robert
Robert