CDs, or compact discs, are a well-liked type of optical media used to retailer information, together with music, films, and software program. They’re made from a polycarbonate plastic disc with a skinny layer of aluminum on one aspect. Information is saved on the aluminum layer within the type of tiny pits and lands. When a CD is performed, a laser beam scans the aluminum layer and displays off the pits and lands. The mirrored mild is transformed into {an electrical} sign, which is then decoded to supply the information.
Over time, CDs can change into scratched or soiled, which may trigger them to skip or freeze when performed. When you have a CD that’s skipping, there are some things you are able to do to wash it and attempt to repair the issue.
