If you have a CD Player, you need to do this periodically...

I tried to order the new Densen DeMagic disc from Sight + Sound Gallery. Ordered it 12/29 of last year and never received it. They don't answer calls, just get transfered to voice mail. Very frustrating!!

With regard to the Bedini CD demagnetizer, I had one of these and used it regularly until it broke down for good. I then replaced it with the Acoustic Revive RD-3 which has accomplished essentially the same thing and that being to demagnetize the CD disc itself. The Ayre and Densen discs, however, address the issues within the system as a whole. The Densen Company is still in business but appears to not have this item as part of their product line. Music Direct still has a 'reference version' of this in their on-line catalog but says that the product is no longer available. Given the results I have had with the 'standard version' I would certainly like to get my hands on the 'new and improved' disc. 

The Ayre IBE disc is still offered from the manufacturer through their dealer network. The two discs essentially do the same thing but when I'm really motivated, I use them both in combination and I think this does open up the system a bit more.

Yes, I am keeping CD players in my systems for this reason and also that I have a ton of burned CD Playlists that we still enjoy. In the 'house system' I'm using a Rotel RCD - 9658x which is at least 25 years old and it still seems to get the job done. 

Been reading up on the Matthew Bond Cascade Noise Burn-In Disc – Version 2.0.

Ordered one today and it will be interesting to see if this item takes the system further than the Ayre disc.

I will share my thoughts after giving it a fair audition.