DVD player

Last updated

A Sony DVP-SR370 DVD player and USB support connection Sony DVD DVP-SR370.png
A Sony DVP-SR370 DVD player and USB support connection
A Philips DVD player with built-in four-directional control buttons OdtwarzaczDVD-Philips.jpg
A Philips DVD player with built-in four-directional control buttons

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. Some DVD players will also play audio CDs. DVD players are connected to a television to watch the DVD content, which could be a movie, a recorded TV show, or other content.

Contents

History

The first DVD player is claimed to have been created by the Japanese electronics vendor Toshiba in November 1996, [1] and the first to be released to US customers is claimed to have been by Sony in April 1997. [2]

Some manufacturers originally announced that DVD players would be available as early as the middle of 1996. These predictions were too optimistic. Delivery was initially held up for "political" reasons of copy protection demanded by movie studios, but was later delayed by lack of movie titles. The first players appeared in Japan on November 1, 1996, followed by the United States on March 31, 1997, with distribution limited to only seven major cities for the first six months. [3]

Players slowly trickled into other regions around the world. Prices for the first players in 1997 started at $600 and could top out at prices over $1000. By the end of 2000, players were available for under $100 at discount retailers. In 2003 players became available for under $50. Six years after the initial launch, close to one thousand models of DVD players were available from over a hundred consumer electronics manufacturers.

Fujitsu released the first DVD-ROM-equipped computer on November 6 in Great Britain. Toshiba released a DVD-ROM-equipped computer and a DVD-ROM drive in Japan in early 1997 (moved back from December which was moved back from November). DVD-ROM drives from Toshiba, Pioneer, Panasonic, Hitachi, and Sony began appearing in sample quantities as early as January 1997, but none were available before May. The first PC upgrade kits (a combination of DVD-ROM drive and hardware decoder card) became available from Creative Labs, Hi-Val, and Diamond Multimedia in April and May 1997. In 2014, every major PC manufacturer had models that include DVD-ROM drives.

The first DVD-Audio players were released in Japan by Pioneer in late 1999, but they did not play copy-protected discs. Matsushita (under the Panasonic and Technics labels) first released full-fledged players in July 2000 for $700 to $1,200. Sony released the first SACD players in May 1999 for $5,000. Pioneer's first DVD-Audio players released in late 1999 also played SACD.

Technical details

The interior of a DVD player DK Digital DVD 1080 open.jpg
The interior of a DVD player

A DVD player has to be able to read a DVD in ISO – UDF version 1.02 format, and needs to read and obey the DVDs Regional lockout codes and display a warning if the player is not authorized to play the DVD.

To play a DVD smoothly, it needs to be able to decode the MPEG-2 video stream with a maximum bit rate of 10 Mbit/s at peak and 8 Mbit/s continuously.

A DVD player may be able to:

DVD players cannot play Blu-ray discs due to using different wavelength lasers (Blu-ray discs use a blue-violet laser, hence their name, rather than a red laser). However, Blu-ray players are typically backwards compatible, meaning they will play DVDs. Some are compatible with CD and other disc formats. The short-lived HD DVD format is also incompatible with DVD for the same reason, however, HD DVD players do play standard DVDs and CDs.

DVD players are largely controlled through a remote control. Built-in controls on the main unit's panel such as a four-directional buttons vary depending on model. Some models may lack advanced built-in controls, making operation more dependent on the remote control. [4]

CD/DVD/AVI/MP4 playback

Additionally, most DVD players allow users to play audio CDs (CD-DA, MP3, etc.) and Video CDs (VCD). A few include a home cinema decoder (i.e. Dolby Digital, Digital Theater Systems (DTS)). Some newer devices also play videos in the MPEG-4 ASP video compression format (such as DivX) popular in the Internet.

Portable players

A portable DVD player Portable DVD player.jpg
A portable DVD player

Most hardware DVD players must be connected to a television; there are portable devices which have an attached LCD screen and stereo speakers. Portable DVD players are often used for long road trips and travel. They often have a plug for the 12 volt power jack in cars. Some models have two screens, so that two people in the back seat can both watch the movie. Other portable DVD players have a single screen that opens up like a laptop computer screen.

Output

Output connectors of a DVD player (2016): The single HDMI connector on the left is employed to replace the older connection options for audio and video signals, which require at least two, depending on the use case even up to five, individual cable connections with RCA connectors (see middle section, colored). An exception was the technically outdated SCART type A/V connector most right. DVD player output.jpg
Output connectors of a DVD player (2016): The single HDMI connector on the left is employed to replace the older connection options for audio and video signals, which require at least two, depending on the use case even up to five, individual cable connections with RCA connectors (see middle section, colored). An exception was the technically outdated SCART type A/V connector most right.

Due to multiple audio (and video) output devices, there are many outputs on a DVD player, such as an RCA jack, component outputs, and an HDMI output. Consumers may become confused with how to connect a player to a TV or amplifier. Most systems include an optional digital audio connector for this task, which is then paired with a similar input on the amplifier. The physical connection is typically RCA connectors or TOSLINK, which transmits a S/PDIF stream carrying either uncompressed digital audio (PCM) or the original compressed audio data (Dolby Digital, DTS, MPEG audio) to be decoded by the audio equipment.

Video

Video is another issue which continues to present the most problems. Early generations of DVD players usually outputted analog video only, via both composite video on an RCA jack and S-Video. However, neither connector was intended to be used for progressive video, and most later players sold then gained another set of connectors, component video, which keeps the three components of the video, luminance and two color differentials, on fully separate wires. This video information is taken directly from the DVD itself. The three components compare well to S-Video, which uses two wires, uniting and degrading the two color signals, and composite, which uses only wire one, uniting and degrading all three signals.

The connectors are further confused by using a number of different physical connectors on different player models, RCA or BNC, as well as using VGA cables in a non-standard way (VGA is normally analog RGB a different, incompatible form of component video). Even worse, there are often two sets of component outputs, one carrying interlaced video, and the other progressive, or an interlaced/progressive switch (either a physical switch or a menu setting).

In Europe (but not most other PAL areas), SCART connectors are generally used, which can carry composite and analog RGB interlaced video signals (RGB can be progressive, but not all DVD players and displays support this mode) or Y/C (S-Video), as well as analog two-channel sound and automatic 4:3 or 16:9 (widescreen) switching on a single convenient multi-wire cable. The analog RGB component signal offers video quality which is superior to S-Video and identical to YPbPr component video. However, analog RGB and S-Video signals can not be carried simultaneously, due to each using the same pins for different uses, and displays often must be manually configured as to the input signal, since no switching mode exists for S-Video. (A switching mode does exist to indicate whether composite or RGB is being used.) Some DVD players and set-top boxes offer YPbPr component video signals over the wires in the SCART connector intended for RGB, though this violates the official specification and manual configuration is again necessary. (Hypothetically, unlike RGB component, YPbPr component signals and S-Video Y/C signals could both be sent over the wire simultaneously, since they share the luminance (Y) component.)

HDMI is a digital connection for carrying high-definition video, similar to DVI. Along with video, HDMI also supports up to eight-channel digital audio. DVD players with connectors for high-definition video can upconvert the source to formats used for higher definition video (e.g., 720p, 1080i, 1080p, etc.), before outputting the signal. By no means, however, will the resulting signal be high-definition video; that is, aside from optional deinterlacing, upconverting generally consists of merely scaling the video's dimensions to match that of higher resolution formats, foregoing the scaling that would normally occur in the output device.

USB

Some DVD players include a USB video recorder. As well as such, there are also have DVD players with a USB port to be able to play digital media types as well as MP4, MP3, etc.

Wireless

Wireless connections (bluetooth and/or Wi-Fi) are useful to manage (play/record) wirelessly content from or to other devices (i.e. cell phones).

Prices

As of 2014, retail prices for such a device, depending on its optional features (such as digital sound or video output), start between 30 and 80 USD/Euro. They are usually cheaper than VCRs.

Manufacture

As of 2002 the largest producer of DVD players is China; in 2002 they produced 30 million players, more than 70% of the world output. These producers have to pay US$15–$20 per player in license fees, to the patent holders of the DVD technology (Sony, Philips, Toshiba) as well as for MPEG-2 licenses. [5] To avoid these fees, China developed the Enhanced Versatile Disc standard as an intended successor of DVD; as of 2004, EVD players were only being sold in China.

Software

Software DVD players are programs that allow users to view DVD videos on a computer with a DVD-ROM drive. Some examples are PowerDVD, VLC media player, Windows DVD Player, and DVD Player on Mac.

Among others, there are variants & huge kinds of software DVD players as well as multimedia player software which has DVD video playback capability, whether its proprietary-type (as commercial software), freeware, shareware or just a free software are available in the market.

Successors

In the battle to succeed and to improve upon the role of the DVD player as the mainstream medium for stored audiovisual content on optical disc, there were two major contestants: the HD DVD player and the Blu-ray Disc player, utilizing two incompatible technologies that reproduced higher resolution video images and more complete audio information than was possible with DVD. On February 19, 2008, Toshiba, creator of the former technology, announced it would cease production on all HD DVD products, leaving Blu-ray as the high definition successor to DVD players.

As technology improved, various players were sold, some of which were also Blu-ray players, that could upscale and up-convert DVD content, increasing the overall perceived picture quality.

See also

Related Research Articles

<span class="mw-page-title-main">Video</span> Electronic moving image

Video is an electronic medium for the recording, copying, playback, broadcasting, and display of moving visual media. Video was first developed for mechanical television systems, which were quickly replaced by cathode-ray tube (CRT) systems, which, in turn, were replaced by flat-panel displays of several types.

<span class="mw-page-title-main">Video CD</span> CD-based format meant for digital video distribution

Video CD is a home video format and the first format for distributing films on standard 120 mm (4.7 in) optical discs. The format was widely adopted in Southeast Asia, South Asia, Greater China, Central Asia and West Asia, superseding the VHS and Betamax systems in the regions until DVD-Video finally became affordable in the first decade of the 21st century.

<span class="mw-page-title-main">Digital Visual Interface</span> Standard for transmitting digital video to a display

Digital Visual Interface (DVI) is a video display interface developed by the Digital Display Working Group (DDWG). The digital interface is used to connect a video source, such as a video display controller, to a display device, such as a computer monitor. It was developed with the intention of creating an industry standard for the transfer of uncompressed digital video content.

<span class="mw-page-title-main">SCART</span> 21-pin connector for audio-visual equipment

SCART is a French-originated standard and associated 21-pin connector for connecting audio-visual (AV) equipment. The name SCART comes from Syndicat des Constructeurs d'Appareils Radiorécepteurs et Téléviseurs, "Radio and Television Receiver Manufacturers' Association", the French organisation that created the connector in the mid-1970s. The related European standard EN 50049 has then been refined and published in 1978 by CENELEC, calling it péritelevision, but it is commonly called by the abbreviation péritel in French.

<span class="mw-page-title-main">S-Video</span> Signal format for standard-definition video

S-Video is an analog video signal format that carries standard-definition video, typically at 525 lines or 625 lines. It encodes video luma and chrominance on two separate channels, achieving higher image quality than composite video which encodes all video information on one channel. It also eliminates several types of visual defects such as dot crawl which commonly occur with composite video. Although it improved over composite video, S-Video has lower color resolution than component video, which is encoded over three channels.

<span class="mw-page-title-main">Component video</span> Video signal that has been split into component channels

Component video is an analog video signal that has been split into two or more component channels. In popular use, it refers to a type of component analog video (CAV) information that is transmitted or stored as three separate signals. Component video can be contrasted with composite video in which all the video information is combined into a single signal that is used in analog television. Like composite, component cables do not carry audio and are often paired with audio cables.

Enhanced-definition television, or extended-definition television (EDTV) is a Consumer Electronics Association (CEA) marketing shorthand term for certain digital television (DTV) formats and devices. Specifically, this term defines an extension of the standard-definition television (SDTV) format that enables a clearer picture during high-motion scenes compared to previous iterations of SDTV, but not producing images as detailed as high-definition television (HDTV).

<span class="mw-page-title-main">HDMI</span> Proprietary interface for transmitting digital audio and video data

High-Definition Multimedia Interface (HDMI) is a proprietary audio/video interface for transmitting uncompressed video data and compressed or uncompressed digital audio data from an HDMI-compliant source device, such as a display controller, to a compatible computer monitor, video projector, digital television, or digital audio device. HDMI is a digital replacement for analog video standards.

<span class="mw-page-title-main">YPbPr</span> Color space used in video electronics

YPbPr or Y'PbPr, also written as YPBPR, is a color space used in video electronics, in particular in reference to component video cables. Like YCbCr, it is based on gamma corrected RGB primaries; the two are numerically equivalent but YPBPR is designed for use in analog systems while YCBCR is intended for digital video. The EOTF may be different from common sRGB EOTF and BT.1886 EOTF. Sync is carried on the Y channel and is a bi-level sync signal, but in HD formats a tri-level sync is used and is typically carried on all channels.

A DVD recorder is an optical disc recorder that uses optical disc recording technologies to digitally record analog or digital signals onto blank writable DVD media. Such devices are available as either installable drives for computers or as standalone components for use in television studios or home theater systems.

<span class="mw-page-title-main">DTS (company)</span> Series of multichannel audio technologies

DTS, Inc. is an American company. DTS company makes multichannel audio technologies for film and video. Based in Calabasas, California, the company introduced its DTS technology in 1993 as a competitor to Dolby Laboratories, incorporating DTS in the film Jurassic Park (1993). The DTS product is used in surround sound formats for both commercial/theatrical and consumer-grade applications. It was known as The Digital Experience until 1995. DTS licenses its technologies to consumer electronics manufacturers.

Dolby Digital Plus, also known as Enhanced AC-3, is a digital audio compression scheme developed by Dolby Labs for the transport and storage of multi-channel digital audio. It is a successor to Dolby Digital (AC-3), and has a number of improvements over that codec, including support for a wider range of data rates, an increased channel count, and multi-program support, as well as additional tools (algorithms) for representing compressed data and counteracting artifacts. Whereas Dolby Digital (AC-3) supports up to five full-bandwidth audio channels at a maximum bitrate of 640 kbit/s, E-AC-3 supports up to 15 full-bandwidth audio channels at a maximum bitrate of 6.144 Mbit/s.

Dolby TrueHD is a lossless, multi-channel audio codec developed by Dolby Laboratories for home video, used principally in Blu-ray Disc and compatible hardware. Dolby TrueHD, along with Dolby Digital Plus (E-AC-3) and Dolby AC-4, is one of the intended successors to the Dolby Digital (AC-3) lossy surround format. Dolby TrueHD competes with DTS's DTS-HD Master Audio, another lossless surround sound codec.

<span class="mw-page-title-main">Sony BDP-S1</span>

The Sony BDP-S1 is a first generation Blu-ray Disc (BD) player and is the first such player released in North America. It was originally scheduled for release in the United States on August 18, 2006 with a MSRP of $999.95. Sony had postponed the release date of this player several times and it was released on December 4, 2006.

<span class="mw-page-title-main">AV receiver</span> Consumer electronics component

An audio/video receiver (AVR) is a consumer electronics component used in a home theater. Its purpose is to receive audio and video signals from a number of sources, and to process them and provide power amplifiers to drive loudspeakers and route the video to displays such as a television, monitor or video projector. Inputs may come from a satellite receiver, radio, DVD players, Blu-ray Disc players, VCRs or video game consoles, among others. The AVR source selection and settings such as volume, are typically set by a remote controller.

The first attempt at producing pre-recorded HDTV media was a scarce Japanese analog MUSE-encoded laser disc which is no longer produced.

GameCube accessories include first-party releases from Nintendo, and third-party devices, since the GameCube's launch in 2001.

Audio connectors and video connectors are electrical or optical connectors for carrying audio or video signals. Audio interfaces or video interfaces define physical parameters and interpretation of signals. For digital audio and digital video, this can be thought of as defining the physical layer, data link layer, and most or all of the application layer. For analog audio and analog video these functions are all represented in a single signal specification like NTSC or the direct speaker-driving signal of analog audio.

<span class="mw-page-title-main">TOSLINK</span> Standardized optical fiber digital audio interconnect

TOSLINK is a standardized optical fiber connector system. Also known generically as optical audio, its most common use is in consumer audio equipment, where it carries a digital audio stream from components such as CD and DVD players, Digital Audio Tape recorders, computers, and modern video game consoles, to an AV receiver that can decode two channels of uncompressed pulse-code modulated (PCM) audio or compressed 5.1/7.1 surround sound such as Dolby Digital or DTS Surround System. Unlike HDMI, TOSLINK does not have the bandwidth to carry the uncompressed versions of Dolby TrueHD, DTS-HD Master Audio, or more than two channels of PCM audio.

Various accessories for the PlayStation 2 video game console have been produced by Sony, as well as third parties. These include controllers, audio and video input devices such as microphones and video cameras, and cables for better sound and picture quality.

References

  1. "Toshiba Science Museum : World's First DVD Player". toshiba-mirai-kagakukan.jp. Retrieved March 26, 2022. In November 1996, Toshiba introduced the world's first DVD player, the SD-3000, as a result of developments initiated in 1994.
  2. "Flashback 1997: The First DVD Players Arrive". Sound & Vision. March 30, 2017. Retrieved March 26, 2022. Sony released its first commercial DVD player in the U.S., the model DVP-S7000
  3. "DVD's first year".
  4. "GRUNDIG GDV 130 service manual []". www.manualslib.com. Retrieved February 10, 2022. (in comparison to Durabrand DV-100)
  5. "EE Times -Taiwan joins Chinese effort on proprietary DVD format". eetimes.com. Archived from the original on April 5, 2004.