What is the MPEG-2 STD model and differences between the P-STD and the T-STD. Requirements and buffer management for the P-STD; what is a Constrained System Parameter Program Stream (CSPS). The PES-STD as a special case of the P-STD. Characteristics of the T-STD; the use of transport buffers and other buffers in the T-STD and options for the transfer rates from one buffer to another. General STD constraints and requirements and examples of decoding of audio and video in the STD.