A bit stream formed from a sequence of {TAIL ~ transport packets}, including transport packets containing compressed program data for each of one or more programs and, for each program, program clock reference time stamps, to which decoding and presentation of said program is synchronized, said {HEAD ~ bit stream} being produced by the steps of: 
A bit stream formed from a sequence of { TAIL ~ transport packets } , including transport packets containing compressed program data for each of one or more programs and , for each program , program clock reference time stamps , to which decoding and presentation of said program is synchronized , said { HEAD ~ bit stream } being produced by the steps of :
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH