How movies are made will affect the format of the home-video and video rentals. VHS had petered out by the mid-2000s with the introduction of the DVD. The DVD format had a higher resolution and better sound quality than VHS, but it was expensive to remaster films for the new format This issue has repeated itself with the existence of Blu-ray discs -- most classic films aren’t available on Blu-ray because of the digital and photochemical process it takes to change formats. But more and more companies are switching to streaming.