"A disk unbeknownst to the director can go to the producer in another city or in another office and that producer can edit behind the director's back much easier than in the old days. Since these dailies are now put on videotape, more kinds of people have access to dailies"

This quote by John Frankenheimer is referring to the changes in the film industry due to the intro of videotape. In the past, film dailies (unprocessed video footage) were just available to the director and a few other people in the production group. Nevertheless, with the intro of video, it is now a lot easier for a disk including the dailies to be sent out to a manufacturer in another city or workplace, allowing them to modify the footage without the director's understanding. This has actually opened the possibility for more individuals to have access to the dailies, which has changed the method movies are made.