![]() ![]() After the invention of the DVD in 1997, and later the Blu-ray Disc in 2006, sales of videotape and recording equipment plummeted. ĭigital video was later capable of higher quality and, eventually, much lower cost than earlier analog technology. DCT coding was adapted into motion-compensated DCT video compression in the late 1980s, starting with H.261, the first practical digital video coding standard. Practical digital video was made possible with discrete cosine transform (DCT) coding, a lossy compression process developed in the early 1970s. It could not initially compete with analog video, due to early digital uncompressed video requiring impractically high bitrates. The use of digital techniques in video created digital video. See also: Digital television and Video coding format
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