Video editing sound recordings in the post-production process. Motion picture film editing is a predecessor to video editing and, in several ways, video editing simulates motion picture film editing, in theory and the use of linear video editing and video editing software on non-linear editing systems (NLE). Using video, a director can communicate non-fictional and fictional events. The goals of editing is to manipulate these events to bring the communication closer to the original goal or target. It is a visual art. Early 1950s video tape recorders (VTR) were so expensive, and the quality degradation caused by copying was so great, that
Digital video recorder a digital video recorder with its operating system and application software contained in firmware or read-only memory. Hardware features of security DVRs vary between manufacturers and may include but are not necessarily limited to: Software features vary between manufacturers and may include but are not necessarily limited to: Some (very few), but certainly not all, digital video recorders which are designed to send information to a service provider over a telephone line or Internet (or any other way) can gather and send real-time data on users' viewing habits. Digital video recorders are also changing the way television programs advertise products.