Method, device and program for receiving and verifying payload data of a transport stream

Reception, receiver and program for receiving data sections (S1...S4) spread on data packets (P1...P4) for example in a DVB-T or DVB-H transport stream (TS) comprising MPEG 2 payload sections. Within a demodulator module, a receiver interface (IC) calculates section CRCs incrementally, tests the CRC at the end of each section, and replaces each CRC by an integrity flag. Advantageously, the interface (IC) forms a new packet for further transmission to a processor (PRO) situated within a digital television receiver or the like every time the end of a section (S1...S4) or the end of a TS packet (P1...P4) is detected so that the new packets comprise data from only one data section and have a variable size at the maximum equal to the size of a TS packet (P1...P4). When an entire TS packet is received before the end of a data section, a partial CRC is kept in the interface memory and the TS packet is deleted from the interface buffer (10). Hence, the size of the interface buffer (10) can be made as small as one reception packet and the processor (PRO) does not need to calculate the CRC.