DVD

DVD-ROMDVDsDVD-9video albumdual layerCD+DVDdigital video discDigital Versatile DiscDVD ROMDVD-5
DVD (an abbreviation of digital versatile disc) is a digital optical disc storage format invented and developed in 1995.wikipedia
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DVD player

DVD playersDVDconsumer entertainment device
The medium can store any kind of digital data and is widely used for software and other computer files as well as video programs watched using DVD players.
A DVD player is a device that plays DVDs produced under both the DVD-Video and DVD-Audio technical standards, two different and incompatible standards.

DVD-Video

DVDDVD-VDVD video
DVDs are used in DVD-Video consumer digital video format and in DVD-Audio consumer digital audio format as well as for authoring DVD discs written in a special AVCHD format to hold high definition material (often in conjunction with AVCHD format camcorders).
DVD-Video is a consumer video format used to store digital video on DVD discs.

Optical disc drive

optical driveCD driveDVD drive
Blank recordable DVD discs (DVD-R and DVD+R) can be recorded once using a DVD recorder and then function as a DVD-ROM.
Compact discs, DVDs, and Blu-ray discs are common types of optical media which can be read and recorded by such drives.

DVD-Audio

DVD-ADVD AudioDVD
DVDs are used in DVD-Video consumer digital video format and in DVD-Audio consumer digital audio format as well as for authoring DVD discs written in a special AVCHD format to hold high definition material (often in conjunction with AVCHD format camcorders).
DVD-Audio (commonly abbreviated as DVD-A) is a digital format for delivering high-fidelity audio content on a DVD.

DVD-RAM

/RAM 4.707GB=4.384GiBDVD RAMDVDs
Rewritable DVDs (DVD-RW, DVD+RW, and DVD-RAM) can be recorded and erased many times.
DVD-RAM was one of three competing technologies for rewritable DVDs.

LaserDisc

LDlaser discLaserVision
A consumer optical disc data format known as LaserDisc was developed in the United States, and first came to market in Atlanta, Georgia in December 1978.
The technologies and concepts behind LaserDisc were the foundation for later optical disc formats including Compact Disc (CD), DVD and Blu-ray (BD).

DVD Forum

DVD Consortium
and in the DVD Forum's mission statement.
The DVD Forum is an international organization composed of hardware, software, media and production companies that use and develop the DVD and formerly HD DVD formats.

Optical disc

optical mediaoptical data storageoptical discs
DVD (an abbreviation of digital versatile disc) is a digital optical disc storage format invented and developed in 1995.
It is of special interest that, filed 1989, issued 1990, generated royalty income for Pioneer Corporation's DVA until 2007 —then encompassing the CD, DVD, and Blu-ray systems.

Philips

Philips ElectronicsRoyal Philips ElectronicsPhilips Media
One was the Multimedia Compact Disc (MMCD), backed by Philips and Sony (developers of the CD and CD-i), and the other was the Super Density (SD) disc, supported by Toshiba, Time Warner, Matsushita Electric, Hitachi, Mitsubishi Electric, Pioneer, Thomson, and JVC.
In 1982, Philips teamed with Sony to launch the Compact Disc; this format evolved into the CD-R, CD-RW, DVD and later Blu-ray, which Philips launched with Sony in 1997 and 2006 respectively.

Video CD

VCDVCDsVideo-CD
Video CD (VCD) became one of the first formats for distributing digitally encoded films in this format, in 1993.
The development of more sophisticated, higher capacity optical disc formats yielded the DVD format, released only a few years later with a copy protection mechanism.

Kees Schouhamer Immink

Kees A. Schouhamer ImminkKees ImminkDr. Kees Immink
The DVD specification ended up similar to Toshiba and Matsushita's Super Density Disc, except for the dual-layer option (MMCD was single-sided and optionally dual-layer, whereas SD was two half-thickness, single-layer discs which were pressed separately and then glued together to form a double-sided disc ) and EFMPlus modulation designed by Kees Schouhamer Immink.
Kornelis Antonie "Kees" Schouhamer Immink (born 18 December 1946) is a Dutch scientist, inventor, and entrepreneur, who pioneered and advanced the era of digital audio, video, and data recording, including popular digital media such as Compact Disc, DVD and Blu-ray Disc.

AVCHD

AVCHD LiteNXCAMAVCCAM
DVDs are used in DVD-Video consumer digital video format and in DVD-Audio consumer digital audio format as well as for authoring DVD discs written in a special AVCHD format to hold high definition material (often in conjunction with AVCHD format camcorders).
A DVD disc with AVCHD high-definition video recorded on it is sometimes called an AVCHD disc.

VHS

videoVHS tapeVHS tapes
Wary of being caught in a repeat of the costly videotape format war between VHS and Betamax in the 1980s, he convened a group of computer industry experts, including representatives from Apple, Microsoft, Sun Microsystems, Dell, and many others. Movie and home entertainment distributors adopted the DVD format to replace the ubiquitous VHS tape as the primary consumer digital video distribution format.
After the introduction of the DVD format in 1997, however, the market share for VHS began to decline.

Universal Disk Format

UDFUDF (Universal Disk Format).udf format
The TWG also collaborated with the Optical Storage Technology Association (OSTA) on the use of their implementation of the ISO-13346 file system (known as Universal Disk Format) for use on the new DVDs.
In practice, it has been most widely used for DVDs and newer optical disc formats, supplanting ISO 9660.

Camcorder

camcorderstapeless camcorderdigital camcorder
DVDs are used in DVD-Video consumer digital video format and in DVD-Audio consumer digital audio format as well as for authoring DVD discs written in a special AVCHD format to hold high definition material (often in conjunction with AVCHD format camcorders).
Digital video camcorder formats include Digital8, MiniDV, DVD, hard disk drive, direct to disk recording and solid-state, semiconductor flash memory.

Home video

home entertainmenthome mediavideo album
Movie and home entertainment distributors adopted the DVD format to replace the ubiquitous VHS tape as the primary consumer digital video distribution format.
The term originates from the VHS/Betamax era, when the predominant medium was videotape, but has carried over into optical disc formats like DVD and Blu-ray and, since the 2000s, into methods of digital distribution such as Netflix, Hulu, and Prime Video.

Keep case

amaray caseDVD caseDVD cases
Studios began printing a standard message on keep cases explaining that this pause is not an indication of a damaged or defective disc.
A keep case or poly-box is a type of packaging, most commonly used with DVDs (and sometimes CDs).

DVD recordable

DVD-RDVD-RWDVD+R
Blank recordable DVD discs (DVD-R and DVD+R) can be recorded once using a DVD recorder and then function as a DVD-ROM. Rewritable DVDs (DVD-RW, DVD+RW, and DVD-RAM) can be recorded and erased many times.
Both terms describe DVD optical discs that can be written to by a DVD recorder, whereas only 'rewritable' discs are able to erase and rewrite data.

David Paul Gregg

Dr. David Paul Gregg
Optical recording technology was invented by David Paul Gregg and James Russell in 1963 and first patented in 1968.
His designs and patents paved the way for the LaserDisc, which helped with the creation of the DVD, compact discs, and MiniDisc.

Pioneer Corporation

PioneerPioneer ElectronicsPioneer LDC
One was the Multimedia Compact Disc (MMCD), backed by Philips and Sony (developers of the CD and CD-i), and the other was the Super Density (SD) disc, supported by Toshiba, Time Warner, Matsushita Electric, Hitachi, Mitsubishi Electric, Pioneer, Thomson, and JVC.
Pioneer played a role in the development of interactive cable TV, the Laser Disc player, the first automotive Compact Disc player, the first detachable face car stereo, Supertuner technology, DVD and DVD recording, the first AV receiver with Dolby Digital, plasma display and the last 2 years of plasma models were branded as Kuro), because of their outstanding black levels.

Alan E. Bell

Alan E. Bell, a researcher from IBM's Almaden Research Center, got that request, and also learned of the MMCD development project.
Alan Bell is most recognized for his role in the unification of the DVD format, in addition to his job in leading the negotiations that led to the development of DVD copy protection, without which the major studios would not have released content to DVD.

Compact disc

CDCDsCD single
One was the Multimedia Compact Disc (MMCD), backed by Philips and Sony (developers of the CD and CD-i), and the other was the Super Density (SD) disc, supported by Toshiba, Time Warner, Matsushita Electric, Hitachi, Mitsubishi Electric, Pioneer, Thomson, and JVC. DVDs offer higher storage capacity than compact discs while having the same dimensions.
Other newer video formats such as DVD and Blu-ray use the same physical geometry as CD, and most DVD and Blu-ray players are backward compatible with audio CD.

Eight-to-fourteen modulation

EFMEFMPlusEFM code
The DVD specification ended up similar to Toshiba and Matsushita's Super Density Disc, except for the dual-layer option (MMCD was single-sided and optionally dual-layer, whereas SD was two half-thickness, single-layer discs which were pressed separately and then glued together to form a double-sided disc ) and EFMPlus modulation designed by Kees Schouhamer Immink.
EFMPlus is a related code, used in DVDs and Super Audio CDs (SACDs).

James Russell (inventor)

James RussellJames T. RussellJim Russell
Optical recording technology was invented by David Paul Gregg and James Russell in 1963 and first patented in 1968.
Early optical recording technology, which forms the physical basis of videodisc, CD and DVD technology, was first published/filed by Dr. David Paul Gregg in 1958 and Philips researchers, Kramer and Compaan, in 1969.

MiniDVD

8 cmMini DVD80 mm discs
The 12 cm type is a standard DVD, and the 8 cm variety is known as a MiniDVD.
MiniDVD (also Mini DVD or miniDVD) is a DVD disc which is 8 cm in diameter.