MPEG-4
MPEG-4 is designed for the special needs of computers, television areas and telecommunications. It is able to be individual objects in a certain area, besides rectangular pieces of computer information. For example, this could be a car driving in front of a background. The background does not change. The car can be treated as separate thing, because it is not a fixed background. This is because MPEG-4 can be many rectangular images at the same time.