Does coloring the edges of CD's help the sonics?

I once heard a demonstration of a cd player with red leds inside the drawer. When they were turned on, it stopped playing. Red light other than the laser's within the drawer can harm the sound. I tried green and black edge treatments which at the time seemed modestly effective. I have discovered, however, that recent cd cleaners, such as Audio Top and Walker Ultra Vivid, negate any benefit from the edge treatment. I guess this might because the red light from the laser is less diffracted.

Also as I now have a music server, ripping to a harddrive seems unaffected by diffraction. In short, I no longer use edge treatment although at one time I thought it had a small benefit.

Shadorne, everyone thinks the AudioDesk trues the radius of the cd. It doesn't. It puts a angle on the edge that extends only half-way through its thickness. It thus is really just directing the light diffused through the plastic downward. You could trim both sides. That would true the radius. I did that with several discs with some benefit, but you need to be very careful not to scratch the disc and it takes too much time for the additional benefit.

With improved cleaners, as for the painting of the outer edge, I found little benefit, which again suggests that it is not disc wobble.

Shadorne, the new cleaners also make scratched discs more readable or at least less likely to cause the cd player to err or pop. I think the laser's rays merely reflect on the sensor with little diffraction elsewhere.

I still remember the demonstration with the red leds. The player just stopped.

Something has removed the modest benefits of painting the edges on discs, perhaps I err in attributing it to more transparent discs.

Geoffkait, it has been a long time since I got the AudioDesk, but I think I aligned the blade as recommended, which was half way through.

Geoffkait, again I found it effective until the new cleaners came out, I think I followed their instruction, and I never experienced any shattering. In fact I think there would be much more potential for shattering with the deeper cut you suggest.

Geoffkait, I just check on the AudioDesk site. You are NOT supposed to trim through the entire thickness. They provide a disc that allows you to set it at the proper thickness. See: http://www.audiodesksysteme.de/downloads/sound_improver_operatinginstructure.pdf

Geoffkait, I doubt if the reviewers noticed. This nonsense about truing the disc is present in all of them without any suggestion that they altered the instructions.

I suspect that less scattering of the laser's light on a more transparent surface would result in less light exiting from the outer edges and thus the loss of the benefits I was getting from the AudioDesk.

I too rest my case as I suspect readers are bored by now.

Best,

So it does not true the disc.

Rodman, I merely started my posting by saying that I no longer hear a benefit from the use of the AudioDesk, so I agree with you.

Tom, send it by USPS as I am going to be out-of-town for a week.