What is MPEG-2 ?
MPEG-2 is a standard used worldwide by broadcasters and manufacturers of digital TV setup.
MPEG stands for Motion Picture Expert Group. MPEG-2 is a method of transmitting digital video and audio in a compressed format using less bandwidth than the traditional analog method.
MPEG-2 also specifies formats in which movies and other programs that are distributed on the DVD , Blue ray disc , etc.