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- Most of today's optical disks are available in three formats: compact disks (CDs), digital versatile disks (DVDs) -- also referred to as digital video disks -- and Blu-ray disks, which provide the highest capacities and data transfer rates of the three.
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Optical storage refers to a class of data storage systems that use light to read or write data to an underlying optical media. Although a number of optical formats have been used over time, the most common examples are optical disks like the compact disc (CD) and DVD.
Optical discs can store analog information (e.g. Laserdisc), digital information (e.g. DVD), or store both on the same disc (e.g. CD Video). Their main uses are the distribution of media and data, and long-term archival.
Sep 27, 2023 · CDs, DVDs, and Blu-rays are the most common optical media formats, and are often used to distribute music, videos, games, and other software. Instead of storing data using magnetic charges, optical media encodes digital data using a series of bumps and pits on the underside of a disc's metallic coating.
DVD Drives: DVD drives are optical drives that can read and write data on DVD discs. They were introduced in the late 1990s and quickly replaced CD drives as the primary optical storage medium. DVD drives use a more refined laser technology to read and write data on the disc.
Over the years, optical media have taken a variety of forms, including LaserDisc (LD), HD-DVD, write-once, read-many (WORM) optical cartridges and several others. From this mix, three formats have emerged as standards in today's optical storage market: Compact disk (CD). The CD represents the first generation of commercial optical storage.
An optical disk is an electronic data storage medium that can be written to and read from using a low-powered laser beam. Most of today's optical disks are available in three formats: compact disks ( CDs ), digital versatile disks (DVDs) -- also referred to as digital video disks -- and Blu-ray disks, which provide the highest capacities and ...
Apr 16, 2014 · The article then explores the most common data formats for optical media: Compact Disc Digital Audio, ISO 9660, the Joliet and HFS extensions, and the Universal Data Format (with an eye towards DVD-Video).
