With your binocular determination scenario, see Dissociated Straight Change

With your binocular determination scenario, see Dissociated Straight Change.



DVD DVD sticker.svg



DVD-R read/write side



DVD-R read/write side



Video type Optical disc



Capacity 4.7 GB (single-sided, single-layer)



8.5 GB (single-sided, double-layer)



9.4 GB (double-sided, single-layer)



17.08 GB (double-sided, double-layer – rare)



Read mechanism 650 nm laser, 10.5 Mbit/s (1×)



Write mechanism 10.5 Mbit/s (1×)







DVD, also called Digital Video Disc or Digital Versatile Disc, is a optical disc storage media format, and was invented and developed by Philips, Sony, Toshiba, and Time Warner in 1995. Its main uses are video and data storage. DVDs are of equally suited dimensions so as compact discs (CDs), but are capable of storing more than six times so as much data.



Variations of the term DVD often indicate the way data is stored on the discs: DVD-ROM (read only memory) has data that can only be read and not written; DVD-R and DVD R (recordable) can record data only once, and then function such as a DVD-ROM; DVD-RW (re-writable), DVD RW, and DVD-RAM (random access memory) can all record and erase data too many times. The wavelength used by standard DVD lasers is 650 nm;[4[]|] thus, the light has a red color.



DVD-Video and DVD-Audio discs infer properly formatted and structured video and audio content, respectively. Other types of DVDs, including those with video content, may be referred to seeing as DVD Data discs.