The Technology Of DVD Media

A digital video disc or DVD is one of the most popular forms of storage media nowadays. It is an optical disk and especially for video storage. However, in some form of data can be stored on a DVD. The dimensions of a DVD are generally the same as those of a common CD, but the amount of data that can be stored is six times larger.

The different variations of DVDs based on track, the data are recorded. A DVD-ROM wrote the data read-only. A DVD + R and DVD-R are those on which data can be written only once and a DVD + RW, data can be written and remove more than once. The laser used to read DVDs are usually 650 nm wavelength. (more…)