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Writable CDs don’t store data on microscopic holes, they instead have a layer of pigment that changes color when heated by a laser.
“The writing process does not produce indentations (pits);” https://en.wikipedia.org/wiki/CD-R#:~:text=The writing process does not produce indentations (pits)%3B
CD-RWs have a coating that can change to its original when the laser heats it to a specific temperature (high heat to write, low heat to erase)
“To erase the disc, the write beam heats the amorphous regions with low power to about 200 °C.” https://en.wikipedia.org/wiki/CD-RW#:~:text=To erase the disc%2C the write beam heats the amorphous regions with low power to about 200 °C.
Problem -> AbstractProxyFactory<SolutionProvider<BaseProblem>>