Like the MPEG-1 and MPEG-2 standards, MPEG-4 accepts different profiles, which establish several values for compression rates, according to the application. Nevertheless, unlike MPEG-2, whose quality is equivalent to the DVD quality standard ,fortheMPEG-4 the variation is much wider, and a great variety of values may be used, which allows the visualization of video images, the capacity of the transmission medium notwithstanding, be it Internet broadband on dial up, for example. It is for this reason, among others, that HDTV broadcasting systems use it as the encoding standard,as an alternative to MPEG-2.