identifier as 16 and the table identifier of the local network of transports as 64. A table identifier of 65 is for a foreign network of transports. The network identifiers are maintained via DVB Services who have separated the identifiers into two unique, yet unnecessary groupings of Network_ID and Original_Network_ID. The two groupings have a large number of overlapping entries. PSI labels Table Identifiers Each table in a transport stream is identified by an 8-bit table identifier. SCTE Specific tables: 0xCO table id is used by Programme Information Message 0xC1 table id is used by Programme Name Message It is not necessary that pid of PMT pointed by PAT will contain a table with table id 0x02 Ignoring table id while reading PMT could have bad consequence Program and Elementary Stream Descriptor Tags Each descriptor in a transport stream table is identified by an 8-bit descriptor tag. Elementary stream types Each elementary stream in a transport stream is identified by an 8-bit elementary stream type assignment. References External links Tektronix poster Computer programming Video codecs MPEG