Since the birth day of MPEG encode standard, it has been rapidly advanced and will be of great influence upon the whole AV market with the popularity of multi-media entertainment system, home cinema system, and so on similar digital products. MPEG编解码标准自从诞生以来就一直发展迅速,并随着多媒体娱乐系统、家庭影院等数字化产品的到来而对整个影音市场产生了深远的影响。