a standard format for transmission and storage of audio, video, and Program and System Information Protocol (PSIP) data. It is used in broadcast systems such as DVB, ATSC and IPTV.
Transport Stream is specified in MPEG-2
Transport streams differ from the similarly named program streams in several important ways: program streams are designed for reasonably reliable media, such as discs (like DVDs), while transport streams designed for less reliable transmission, namely terrestrial or satellite broadcast. Further, a transport stream may carry multiple programs.