Compact discs are amazing. Once you have listened to one, no other recorded sound will ever better it. Ordinary record discs can get scratched or dirty. Tapes in cassettes can stretch and break. But the sound in a compact disc is sealed in for life. The ‘playing surface’ is never touched and recording remains crystal clear for year after year.
At the heart of the system is a computer. The computer is specially programmed to reproduce sound more accurately than any other home player. The disc is computerized too. The recording on it is made using computer codes – known as digital recording. Inside the compact-disc player, a laser beam reads these codes and feeds them to the computer. The computer turns the codes back into sound – pure, clean sound without a single crackle or hiss.
There is no needle or magnetic head to cause damage. There are very few moving parts too. So your recorded disc will sound as good when you play it fo the thousandth time as it did when you first put it into the player and switched on.
Picture Credit : Google
