In particular, the invention pertains to selectively multiplexing bit streams containing {TAIL ~ one or more programs}, such as {HEAD ~ real time audio video programs} 
In particular , the invention pertains to selectively multiplexing bit streams containing { TAIL ~ one or more programs } , such as { HEAD ~ real time audio video programs }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD