Physical degradation of CD's

Of the few hundred CDs I’ve owned since the late 1980s only one quit working, and that wasn’t long after I bought it. To this day I’m not sure if it was really defective, or if I somehow damaged it. 

I'd be more concerned about the CD players becoming obsolete and no longer made, like VCRs. 

Don’t forget that the easiest surface to damage is the label side. The pits are just under it! And most CDs are stamped, not laser burned!

Hard to see how the tiny currents in a DAC will help it burn-in. Speakers, cartridges and amplifiers possibly. I put an input power meter on my Krell class A amplifier after a rebuild, and the power consumption definitely rose over a few days, even though it was switched off when not in use.

Physical CD degradation does happen, but media should last 100 years+. If you are concerned, you can always rip into file then burn another copy. Or just play the file.

@asctim - any computer drive still reads and writes CDs. As do BD players.

A Japanese 100V unit works just fine in the US.. I bought the CEC TL-5....talked to an electrician....said it would be fine...It's better than fine.