Digital video recorder (DVR)
Digital video recorders (DVR) provide the capability of concurrently recording incoming streaming video data using hard disk drive technology and playing back previously recorded video data. Digital video recorder systems use magnetic hard disk drives rather than magnetic cassette tapes to store video programs. The ability to record broadcasting data, such as movies, television shows and sporting events has significantly increased the conveniences and viewing options available to viewers. Recent advances in broadcasting technology have enabled digital data to be broadcast and recorded, which has further enhanced the viewing experience and options available to consumers. Digital video recorders (DVRs) typically store video programs on a random access storage (RAS) device, such as on a conventional hard disk drive (HDD), which enables certain "trick play" features, such as skipping ahead in a program. A digital video recorder receives incoming streaming video data from the output interface of a standard set-top box configured to receive the broadcast signals from a multiple-service operator (MSO), such as a cable provider, and the output of the DVR is transmitted directly to a display device. Digital video recorders (DVRs) provide increased freedom and access to broadcasted television (TV) programs by recording numerous selected television program in digitized form on a hard drive. For example, users can simultaneously record a live broadcasting TV program while watching another pre-recorded TV program, including the program that is currently being recorded. Digital video recorders allow a user to overcome the rigid time schedule according to which television programs are typically broadcast. Digital recordings can be searched more quickly than analog recordings because they can be displayed at high speeds. Accordingly, some viewers have found it desirable to watch and record programs in a digital format.
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