Earlier quoted context omitted.
I'm curious why a CD would not work anymore after listening to it a lot? Is the laser powerful enough to damage it or is it the heat from the device itself which is degrading the material in the long term?
The polycarbonate substrate could degrade due to temperature, humidity, exposure to sunlight, and other environmental variables. These are concerns for institutions with large CD-based archives (e.g., Library of Congress). [1] In practice, though, it's far more likely that the the disc will get corrupted from small scratches. [1] https://www.npr.org/sections/alltechconsidered/2014/08/18/34...
https://www.nature.com/news/2001/010628/full/news010628-11.h...