Ah yes,more nonesense and bogus theories that deals with green
pens, laser light absorption, and scatter reduction. This appears to repeat itself every couple of months
There is not a SINGLE CD player that uses a red laser diode Mr Penance. If the did they would be violating the Red (no pun intended) Book specifications, not to mention that theywould not work. What you are seeing is red shifting of the infrared beam (wavelength 780-800nm)by looking off-axis through the antireflection coating on the lens.
These coatings are designed for normal incidence and tend to show funny colors when viewed off-axis.
It has NEVER been shown that green ink absorbs light at 790 nm (the typical wavelength of semiconductor lasers used in CD players).
It has NEVER been shown that there is even any light that makes it to the edge of the disc in the first place. In fact the only physical mechanism by which that would be possible is through total internal reflection that would require a pretty precise incident angle.
It has NEVER been shown that any light that somehow makes it to the edge of the disc (and is not "absorbed" by the magic green ink) will find its way back to the detector to have any effect whatsoever. If stray lightaffected the laser pick-up system then CD players would sound better in the dark. This is actually an easy experiment to do: Get a really bright light and shine it on your spinning disc.
Do you hear a difference? I don't think so.
Any claims to the contrary are just that: claims that are unsupported by any scientific evidence or even simple experimentation. But that never appears to bother any of the snake oil brigade.
Here is a lovely post on another forum re cables which can be changed quite easily for this topic
Cable Neurosis
A compensatory displacement mechanism related to a loss of tone controls. May also be symptomatic of a free-floating anxiety that "everything should be better than it is".
Many sufferers may also have experienced the loss of a turntable, which enabled comforting tweaking behaviours.
Persons suffering from this condition are almost exclusively male. General age of onset: late adolescence / early adult.
Medical treatment is not indicated. ECT, in particular, is contraindicated because the sufferer may develop an obsessive interest in the apparatus.
Cable Neurosis is essentially a developmental disorder. Signs and symptoms generally abate by mid/late middle age
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