 Instead of Y′UV, Y′CbCr was used as the standard format for (digital) common video compression algorithms such as MPEG-2.Digital television and DVDs preserve their compressed video streams in the MPEG-2 format, which uses a full Y′CbCr color space, although retaining the established process of chroma subsampling.The professional CCIR 601 digital video format also uses Y′CbCr at the common chroma subsampling rate of 4