How Do CDs and DVDs Work?

 Simple Yet Amazing Technology

A lot of people pop in their CDs or DVDs, watch or listen to the media stored on the disk, and think little to nothing of the amazing technology that transfers data from a spinning disc on to a screen or through a set of speakers.  But the astonishingly simple yet advanced technology that enables music to stem from a plastic disk or a full length blockbuster to be viewed at home is something amazing for people to consider.

A CD or a DVD, or more recently a Blu-ray disc, all work in the same basic way to transfer stored data into auditory or visual messages.  And as was stated before, the simplicity of design and the functionality of design is what makes CDs and DVDs truly astounding.

Data Storage

Data, whether simply audio or visual or both combined, is stored on compact discs and DVD discs using the basic elements involved in binary code.  Binary code, one might recall, is the system of breaking every piece of information down into a sequence of ones and zeroes that compose the data as a whole.

With every piece of data being stored according to its numeral designation of sequential ones or zeroes, the ability of a disc to hold track of music or hours of video becomes a possibility.  The disc of a CD or DVD holds within it a layer of reflective aluminum that has indentations and flats know as pits and lands which, when a laser from a player is run over them, translate the reflections as either a one or a zero.

With the information gathered by the media player of ones and zeroes as offered by the pits and flats of the CD or DVD, the player can then translate the binary code offered by the disc into auditory and visual information that we understand as music, sound, and video. So while the process may seem a bit confusing, the technology of CDs and DVDs is remarkably simple, which ensures that they will be around for generations to come. This makes using CDs or DVDs in your marketing