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LaserDisc
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=== DVD === By the advent of [[DVD]], LaserDisc had declined considerably in popularity, so the two formats never directly competed with each other. [[File:LDDVDComparison-mod.png|thumb|right|A Laserdisc (left) is much bigger than a DVD (right)]] LaserDisc was a [[composite video]] format: the luminance (black and white) and chrominance (color) information were transmitted in one signal, separated by the receiver. While good [[comb filter]]s could separate the signals adequately, the two signals could not be ''completely'' separated. On [[DVD-Video]], images are stored in the [[YCbCr]] format, with the chroma information being entirely discrete, which results in far higher fidelity, particularly at strong color borders or regions of high detail (especially if there is moderate movement in the picture) and low-contrast details such as skin tones, where comb filters almost inevitably smudge some detail. In contrast to the entirely digital DVD, LaserDiscs used only analog video. As the LaserDisc format was not digitally encoded and did not make use of compression techniques, it was immune to video [[macroblocking]] (most visible as blockiness during high motion sequences) or [[color banding|contrast banding]] (subtle visible lines in gradient areas, such as out-of-focus backgrounds, skies, or light casts from spotlights) which could be caused by the [[MPEG-2]] encoding process as video is prepared for DVD. Early DVD releases held the potential to surpass their LaserDisc counterparts, but often managed only to match them for image quality, and in some cases, the LaserDisc version was preferred. Proprietary human-assisted encoders manually operated by specialists could vastly reduce the incidence of artifacts, depending on playing time and image complexity. By the end of LaserDisc's run, DVDs were living up to their potential as a superior format. DVDs use compressed audio formats such as [[Dolby Digital]] and [[Digital Theater System|DTS]] for multichannel sound. Most LaserDiscs were encoded with stereo (often Dolby Surround) CD quality audio 16bit/44.1 kHz tracks as well as analog audio tracks.<ref name="AllforMP3" /> DTS-encoded LaserDiscs have DTS soundtracks of 1,235 kbit/s instead of the reduced bitrate of 768 kbit/s commonly employed on DVDs with optional DTS audio.
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