Pixels on computer screens usually are sq., but pixels Employed in digital video often have non-square factor ratios, such as People Utilized in the PAL and NTSC variants of the CCIR 601 digital video normal, as well as the corresponding anamorphic widescreen formats. To indicate subtitles/captions as well as your https://www.youtube.com/watch?v=jfBrROL69Lk