MPEG stands for Motion Pictures Experts Group and describes a method to compress digital video data in order to make it fir onto a VideoCD or DVD for example. The MPEG method does not save each pixel of every frame within a movie individually. Instead, the complete picture is only being saved in so-called keyframes. Between two keyframes, only the variation to the first keyframe is saved. This is why the method is excellently appropriate for slow sequences without much action.






MPEG im deutschen Lexikon
MPEG in het nederlandse encyclopedie