Category
page 1Video storage
compact disc
digital optical disc data storage format
DVD
DVD (digital video disc or digital versatile disc) is a digital optical disc data storage format. It was invented and developed in 1995 and first released on November 1, 1996, in Japan. The medium can store any kind of digital data and has been widely used to store video programs (watched using DVD players), software and other computer files. DVDs offer significantly higher storage capacity than compact discs (CD) while having the same dimensions. A standard single-layer DVD can store up to 4.7 GB of data, a dual-layer DVD up to 8.5 GB. Dual-layer, double-sided DVDs can store up to a maximum o

Blu-ray Disc
Blu-ray (Blu-ray Disc or BD) is a digital optical disc data storage format designed to supersede the DVD format. It was invented and developed in 2005 and released worldwide on June 20, 2006, capable of storing several hours of high-definition video (HDTV 720p and 1080p). The main application of Blu-ray is as a medium for video material such as feature films and for the physical distribution of video games for the PlayStation 3, PlayStation 4, PlayStation 5, Xbox One, and Xbox Series X. The name refers to the blue laser used to read the disc, which allows information to be stored at a greater

LaserDisc
LaserDisc (LD) is a home video format and the first commercial optical disc storage medium. It was developed by Philips, Pioneer, and the movie studio MCA. The format was initially marketed in the United States in 1978 under the name DiscoVision, a brand used by MCA. As Pioneer took a greater role in its development and promotion, the format was rebranded LaserVision. While the LaserDisc brand originally referred specifically to Pioneer's line of players, the term gradually came to be used generically to refer to the format as a whole, making it a genericized trademark. The discs typically hav
optical disc drive
disk drive that uses laser light or electromagnetic waves to read or write data
Q321259
optical home video format
Universal Media Disc
optical disc medium for PlayStation Portable

CD-R
CD-R (Compact disc-recordable) is a digital optical disc storage format. A CD-R disc is a compact disc that can only be written once and read arbitrarily many times.
CD-RW
thumb|Logo of Compact Disc-ReWritable (CD-RW).
thumb|CD-RW with distinctively darker data surface than a CD-R and a factory-pressed [[CD-ROM.]]
Philips CD-i
The Compact Disc-Interactive (CD-I, later CD-i) is a digital optical disc data storage format as well as a hardware platform, co-developed and marketed by Dutch company Philips and Japanese company Sony. It was created as an extension of CDDA and CD-ROM and specified in the Green Book specifications, co-developed by Philips and Sony, to combine audio, text and graphics. The two companies initially expected to impact the education/training, point of sale, and home entertainment industries, but the CD-i is largely remembered today for its video games.

DVD-RAM
DVD-RAM (DVD Random Access Memory) is a DVD-based disc specification presented in 1996 by the DVD Forum, which specifies rewritable DVD-RAM media and the appropriate DVD writers. DVD-RAM media have been used in computers as well as camcorders and personal video recorders since 1998.
DV
format for storing digital video
Ultra HD Blu-ray
optical disc storage medium

DVD-Video
thumb|right|200px|Other logo used from 1997 to 2001 (although some DVDs from 2001 to 2003 and some pirated DVDs made after 2001 still carry this logo)
DVD-Video is a consumer video format used to store digital video on DVDs. DVD-Video was the dominant consumer home video format in most of the world in the 2000s. As of 2025, it continues to compete with its high-definition Blu-ray Disc counterpart, while both receive competition as the collective delivery method of physical media by streaming services such as Netflix and Disney+. Discs using the DVD-Video specification require a DVD drive and a
ripping
Ripping is the extraction of digital content from a container, such as a CD, onto a new digital form and location. Originally, the term meant to extract the music from Commodore 64 games. Later, the term was applied to ripping WAV or MP3 files from digital audio CDs, and after that to the extraction of contents from any storage media, including DVD and Blu-ray discs, as well as the extraction of video game sprites.

Ampex
right|thumb|250px|Former Ampex headquarters on Broadway in Redwood City, California
AVCHD
right|AVCHD logo
AVCHD (Advanced Video Coding High Definition) is a file-based format for the digital recording and playback of high-definition video. It is H.264 and Dolby AC-3 packaged into the MPEG transport stream, with a set of constraints designed around camcorders.
HDV
thumb|HDV Mark

videodisc
thumb|Videodisc and VHS cassette
Videodisc (or video disc) is a general term for a laser- or stylus-readable random-access disc that contains both audio and analog video signals recorded in an analog form. Typically, it is a reference to any such media that predates the mainstream popularity of the DVD format. The first mainstream official Videodisc was the Television Electronic Disc (TED) Videodisc, and the newest is the 4K Ultra HD Blu-Ray Disc. As of September 2023, the active video disc formats are Blu-ray Disc, DVD, and in other regions because of the price difference from DVD, Video CD (
Super Video CD
digital media storage format

MiniDVD
thumb|right|250px|Conventional 12 cm disc (left) compared to 8 cm disc (right)
thumb|A Sony camcorder using MiniDVD media
TiVo
TiVo ( ) is a discontinued line of digital video recorders (DVR) developed and marketed by Xperi (previously by TiVo Corporation and TiVo Inc.) and introduced in 1999. TiVo provides an on-screen guide of scheduled broadcast programming television programs, whose features include "OnePass" schedules which record every new episode of a series, and wishlist searches which allow the user to find and record shows that match their interests by title, actor, director, category, or keyword. TiVo also provides a range of features when the TiVo DVR is connected to a home network, including film and TV s

DualDisc
The DualDisc is a double-sided optical disc developed by a group of record companies including MJJ Productions Inc., EMI Music, Universal Music Group, Sony BMG Music Entertainment, Warner Music Group, and 5.1 Entertainment Group, and later supported by the Recording Industry Association of America (RIAA). It featured an audio layer intended to be compatible with CD players (but too thin to meet Red Book CD specifications) on one side and a standard DVD layer on the other. In this respect it was similar to, but distinct from, the DVDplus developed in Europe by Dieter Dierks and covered by Europ
eight-to-fourteen modulation
DC-free run-length limited line code used by several optical disc formats

XDCAM
XDCAM is a series of products for digital recording using random access solid-state memory media, introduced by Sony in 2003. Four different product lines the XDCAM SD, XDCAM HD, XDCAM EX and XDCAM HD422 differ in types of encoder used, frame size, container type and in recording media.
CD Video
format of optical media disc introduced in 1987, combining the technologies of standard compact disc and LaserDisc
run-length limited
coding technique in communication technology
Enhanced CD
certification mark
Enhanced Versatile Disc
Chinese optical disc format intended to replace DVD
Versatile Multilayer Disc
high-capacity red laser optical disc technology
analog recording
technique used for the recording of analog signals
DVD recorder
device for use in television studios or home theater systems that writes to DVDs

D-VHS
D-VHS (short for Digital VHS) is a digital video recording format developed by JVC in collaboration with Hitachi, Matsushita, and Philips. Introduced in December 1997, it was designed to record digital video, including high-definition content, using the same higher-grade tapes as S-VHS (Super VHS), which could accommodate the increased data rates required by the format.

HDCAM
thumb|Sony HDW-F900 CineAlta HDCAM camcorder
Hi8
Hi8 (high-band Video8) is a consumer analog recording videocassette for camcorders based on the 8 mm video format developed by Sony, and introduced in 1989. The name is an improvement on the original Video8 format and mainly competed with Super-VHS.
Digital8
Digital8 (or D8) is a consumer digital recording videocassette for camcorders developed by Sony, and introduced in 1999.
P2
storage media format
Video High Density
videodisk format

Capacitance Electronic Disc
analog video disc playback system developed by RCA
BD-J
BD-J, or Blu-ray Disc Java, is a specification supporting Java ME (specifically the Personal Basis Profile of the Connected Device Configuration or CDC) Xlets for advanced content on Blu-ray Disc and the Packaged Media profile of Globally Executable MHP (GEM).
D5 HD
professional digital video format
3D optical data storage
any form of optical data storage allowing three-dimensional recording or display
Archival Disc
Optical Disc Storage Format
D-1
digital recording standard
MicroMV
thumb|Rear side of MicroMV cassette

Digital-S
thumb|A JVC KY D29 Digital-S pro camcorder
Digital-S, later known as D-9, is a professional digital videocassette format created by JVC in 1995.
Cartrivision
Cartrivision is an analog video tape cartridge format introduced in 1972, and the first format to offer feature films for consumer rental.
D-3
magnetic tape-based videocassette format
Forward Versatile Disc
offshoot of DVD format
D-2
professional digital videocassette format
video server
Device that is dedicated to delivering video
Constant linear velocity
qualifier for the rated speed of an optical disc drive
D6 HDTV VTR
magnetic tape-based videocassette format
TV-Anytime
TV-Anytime is a set of specifications for the controlled delivery of multimedia content to a user's local storage. It seeks to exploit the evolution in convenient, high capacity storage of digital information to provide consumers with a highly personalized TV experience. Users will have access to content from a wide variety of sources, tailored to their needs and personal preferences. TV-Anytime specifications are specified by the TV-Anytime Forum.
Constant angular velocity
qualifier for the rated speed of an optical disc drive
double-density compact disc
type of disc
Flexplay
MOD and TOD
recording formats for use in digital tapeless camcorders
Portapak
A Portapak is a battery-powered, self-contained video tape analog recording system. Introduced to the market in 1967, it could be carried and operated by one person.
optical recording
history of optical recording