So this so-called "trailer" is just the first 4 minutes of the film. I've been fascinated with these ever since watching Phelous' videos. Where did you get these from and do you know how many of these live-action Elmar Gunsch things are dubbed by "Dutch Dad" and his kids?
Apparently it is named after the ISO 9660 system, and is derived from "International Organization for Standardization". The file itself is like opening a CD or a DVD, just without having the disc itself.
There were seven of these things ("Cinderella", "Snow White", "King Thrushbeard", "Little Red Riding Hood", "Hansel and Gretel", "The Wolf and the Seven Goats" and "Sleeping Beauty"), and all of them were dubbed by Art Media.