In every theater it used to be before the same movie. Whirring hall after first Lights switched to a whisper, and after hearing the other side sound, completely silent. The sound is usually heard by a few seconds before the screen went first image and the end of the film has faded away. There were lights in the back of the audience, the illuminated slit, which was the only link a cinema projectionist's cabin.
6 issue of the journal World Film in the electronic version
Few things rotates as fast as the recording media used. Are you sure you still remember from the 90s VHS or MC cartridges, which began at the turn of the millennium from the market to push the DVD and CD discs. DVD era, although still present, but we do not have to wait long and the medium will be replaced by Blu-Ray.