It is nonvolatile, if you turn off the computer, the disc is not erased. (if you have a dvd bluray or cd and you turn off the cd, dvd, or bluray player the songs or movie on the disc is not erased). It does not use electrons to store data, it uses grooves and bumps in the disc and is read with a laser
Put it in a CD player.
optical disls
It is possible that an Insignia 5-disc CD player says no disc in the player's window because the sensor is bad inside the player. Try using a cleaning kit to clean the CD player.
A properly operating CD player will not damage a CD because there is no physical contact with the disc except in the center, where no music is stored, however a defective player can damage the disc if the alignment is off causing the disc to touch the internal components of the player.
BluRay discs carry high definition television and therefore store data in a high density format. A standard definition DVD player will not recognise a BluRay disc and will simply report an error if one is loaded. On the other hand, a BluRay player will not only play BluRay discs but will also handle standard DVDs. Most will also recognise and play CD format discs. Most Bluray players will also down convert the HD signal from a BluRay disc so that it can be viewed on a standard definition television. In this case, of course, the image quality will be the same as any other standard definition signal. To benefit from the high definition signal, an HD television is also required.
Older CD players cannot detect the dye material, used in recordable discs. You will probably get an error message "Disc not detected" or "No disc"
If the CD Player will not read the CD then either there is something wrong with the CD or the CD player or the CD or CD player needs to be cleaned.
Compact Disc Player
When someone gets a disc reading error while listening to a cd it is a sign of the disc being dirty or damaged. Try cleaning the disc. If that doesn't help the lens in the cd player maybe dirty.
A compact disc player could read no disc because there is no disc in the player. It could also read no disc because the disc in not compatible or readable.
After fuse was removed to see if blown when put back was where cd player said no disc. Before that it said disc error because it would't change cds.