In DVD Stream Recording Stream Object Units are real-time recorded,
wherein such fixed-length Stream Object Units serve as a container for
Application Packets that have a variable length and carry payload data
and an Application Time Stamp, this timestamp enabling proper real-time
playback. In case the temporal distance between two succeeding
application packets is too big, stuffing data must be inserted into the
corresponding Stream Object Units. The real-time stuffing control is
performed such that overflow of the input buffer is avoided in case of a
specific kind of input signals.