Video bitrate is defined as the number of processed bits, and the unit is measured in bits per second value. It is the speed at which video is transmitted in a given time. Higher the mp4 bitrate, the larger the data transfers in a given time. The apt bitrate for a video can be adjudged on the basis of the device on which it will be played. A good quality video in a web has a bitrate of an approx value of 2mbps while a standard definition DVD has 6mbps.