Could it be a warning that CD has hit is half-age lifetime?
Since when did CDs have half-lifes?
Aren't they Moire Fringes?
You're looking at a moire pattern on the disc, caused by interference. However, the picture is of the label side, so (up to a point) the state of that side of the disc is irrelevant. If you see those patterns on the playing side (the underside with no writing) you might need to worry.
What those surface shapes mean? What is the proper name for this?Could it be a warning that CD has hit is half-age lifetime?