The DVD shows some of the animations that are available in the mapping software. By calculating the positions of the celestial bodies, and then rapidly stringing those calculations together, an animation can be created to speed up the natural movements. In other words, the movement of say, Jupiter, across the star field over a period of several months in any given year can be seen as an animation in a few seconds.
The DVD shows a unique convergence of Jupiter and Venus that occurred about 2 BC (using our current Western Civilization calender). The two planets "touched" but did not overlap, thereby making the pair the brightest "object" in the night sky, and which exhibited some unique "movement" in the sky because of the relative movements of the Earth and those two planets. Hence, the "Star" of Bethlehem. It also shows rare celestial events that occurred in 33 AD (again using our calender).
