An apparatus and method for controlling recording and reproduction in a
video cassette tape recorder are disclosed.Iadd.. The .Iaddend.apparatus
is capable of, in a recording mode, separating specific data for
speed-varied reproduction from compressed digital video signals,
recording them on designated tracks, recording position information of
the designated tracks on a control track by an index head or recording
position information of recording position-synchronized blocks at the
starting portions of the designated tracks recorded with the specific
data, and in a speed-varied reproduction mode, controlling a capstan
servo speed so as to maintain the travel of a magnetic tape at a normal
speed and periodically or non-periodically accelerate or decelerate it
where specific data for varied-speed have been recorded periodically or
non-periodically on predetermined portions of tracks, thereby making
heads travel repeatedly at the normal speed and the high speed and
thereby detect continuously the specific tracks for varied-speed. A
repeatability of reproduced video at a varied speed is obtained without
any deterioration in picture quality, because of recording of the
specific data for speed-varied reproduction and the continuous detection
of the specific data in the speed-varied reproduction.