MPEG2 Measurement Generator DVG is a universal generator for digital TV signals in the form of transport streams in line with the MPEG2 standard. The structure of these streams and the data reduction methods employed were developed and standardized by the Moving Picture Experts Group (MPEG), the Digital Video Broadcasting (DVB) project and the Advanced Television Systems Committee (ATSC). A main feature of the transport stream is that it contains several programs, each consisting of several substreams carrying video, audio and data signals.