Using a demagnitizer on compact Discs?

I've found the process worth performing but it's effect doesn't last that long. Many reviewers Robert Hartley included mention this procedure with the bulk demagnetizer. If you check Nordost site on their ECO 3 antistat they claim improvements are obtained. On the other hand we know that cables could build electrostatic electricity..... and that insulation/jacket plays a role here .. I use a cassette head demagnetizer for exploring the posibilities of this treatment.... While doing this I applied the demagnetizer to power, cords, interconnect and speaker cables and consistently I obtain improvement in presentation of the music!!!!! go figure Don't have exact reason for this but it provides a nice improvement. My only theory is of electrostatic build up on the cables. My cables are suspended using cardboard cylinders from the uncarpeted terrazzo floor and system has dedicated lines and grounding rod. Anyone with similar experiences or comments?

I've used a bulk tape demagnetizer on CD's and found that it helped noticeably, but what I've found even better, and much better at that, is the little red Zerostat gun, originally designed to remove a static charge from LP's, currently sold by Audio Advisor, I believe, and others, for almost $60. No one is sure why demagnetizers make any difference, and I've not heard of anyone else who's discovered using antistatic devices. Does anyone else have information or experience about this?

Tom_nice is correct. the zero stat works well on CD's. for an explanation see Auric Illuminator's description of static build up on spinning CD's. Sometimes the scientific explanation actually works. Go figure. Cheers!

How can you demagnetize a metal 9aluminum, gold) that cannot be magnetized because it doesn't possess magnetic properties?

I use the Bedini, I like it, I hear an improvement (and so do a whole mess of print reviewers). Aluminum isn't magnetic, but that's not quite what happens. Ask Bedini...