
Technical convergence
each second of video playback uses 25 frames, it is easy to work
out the number of still pictures that can be stored on one side of
a disc:
36 X 60 X 25 = 54000 pictures.
# Each frame can be identified by a number, and the player can
access any frame simply by moving the reading head to the
corresponding track. Any frame from the 54000 stored on a side
of a disc can be accessed in under 2 seconds. It is this numbering
system that is used by the associated computer software to
control the videoplayer.
To make a videodisc, the video sequences must first be shot
using the professional C-format video system. When the final ...