any comments on demagnitizing cds ?

I've tried the Furutech and hear very SMALL improvements, sometimes I hear nada. Ont the other hand I now use a Nespa Pro light machine and hear HUGE... improvements.

Leec, I would agree generally. I have reduced my treatments with the Furutech to once on either side and hear no improvements after that. The Nespa, cleaning originals, and duplicating them have all given greater improvements. I also use my AudioDesk trimmer only on sacds along with cleaning and the Nespa.

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

"...aluminum or gold of which neither are magnetic."

Just because people call it a demagnetizer does not mean it is used as such, or that is what it is doing. Consider a transformer - the copper (not magnetic) wires are certainly effected by the magnetic field. Or look up inductive heating. Or best because it is so cool to watch: get a copper pipe and a strong disc magnet that just fits inside the pipe, drop the magnet through the pipe. Need an explanation, google eddy currents.

Bill

I am a RD-2 owner for two years. In my highly revealing system, the improvement with every disc - better and more bass, better soundstaging, less harsh sound, better defined voices - is often so startingly that a high end-loving friend of mine, who regularly comes over to listen to my system, asked me if I had switched to another, much better DAC, when I took out a disc I had just played, treated it with the Furutech (without him noticing), and played it again.
Why does it work? Because CDs are not made of plastic alone, but contain parts of metal. Anyone interested in how and why it works may take a look at US patent 6058078 of May 2, 2000.