{HEAD ~ The apparatus} 2 wherein the server computing device is configured to use RTSP and RTP protocols to transmit the virtual file that plays the second advertisement portion in {TAIL ~ response} to a request to skip the second advertising portion of the digital file 
{ HEAD ~ The apparatus } 2 wherein the server computing device is configured to use RTSP and RTP protocols to transmit the virtual file that plays the second advertisement portion in { TAIL ~ response } to a request to skip the second advertising portion of the digital file
HEAD HEAD HEAD HEAD HEAD HEAD 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 TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH