DVD players are a wonderful piece of technology. Because of the DVD player, people are able to get rid of those space hogging VHS tapes and replace them with small jewel cases. How does the DVD player work? That’s the question that will be answered here.
The DVD player works by reading the information that is stored on a disc and then converting that information to video and sound bytes that a television can understand. Seems simple, right? It’s actually really technical.
Information is stored on a DVD in tiny grooves and bumps, which is what gives the DVD that record look. Ever tried to count how many rings there are on a DVD? It’s not an easy task because there are millions. DVD’s have that shiny look because there is a piece of reflective aluminum paper behind the ridged outer cover of the disc.
DVD’s are read by DVD players. There are three basic components to the DVD player, each of which is necessary to get information off of the disc and converted to a readable language that your television can understand. First, the motor makes the disc spin. While the disc is spinning, the laser reads the information that is stored in the bumps and grooves and the tracking system keeps record of where the laser should be focused.
The information that is pulled off the DVD by the laser is then reflected off the aluminum paper and back to a sensor. This information is translated to a code called the binary code and then to an analog signal that is the type of signal a television needs to produce a picture and sound.
Of course, the translation is much more complex than it sounds. This is why a DVD player is a wonderful piece of technology. Now that you have a little insight into what is inside a DVD player cover, you may want to be more careful with your DVD player in the future.