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A typical laser diode used in such a player...

...has a usable lifetime of >50,000 hours. This equates to playing discs 12 hours per day for more than 11 years. Can they fail prematurely? Well, I suppose so but not too likely. What will fail first are the mechanical components used to support and move the diode.

Laser diodes do accumulate debris over time which interferes with their ability to track and read discs. Not sure why you say they don't get dirty.


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  • A typical laser diode used in such a player... - krisjan 08:51:18 02/19/15 (2)

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