chartz
If it’s broke fix it!
I saw the claim for reduced bit error but no proof of it, even back then, the opposite was true as regards BLER. I also vaguely remember some graphs showing tiny jitter reductions, but no proof of audibility.
If it worked cds would have green edges.
My first gen Philips CD300 has green LEDs that illuminate the whole CD. It is dated mid-1983.
I think it was for aesthetic reasons but some people thought those Belgian engineers did it for a technical reason... you know the rest of the story.