A digital video recorder is an electronic device that records video in a digital format to a disk drive, USB flash drive, SD memory card, SSD or other local or networked mass storage device
DVRs let you record shows that conflict with other programming so you don’t have to choose. DVR service allows you to preset recordings so you’ll never miss an episode of your favorite drama or comedy. Arguably the most popular feature of a DVR is the ability to pause live TV and rewind or fast-forward.
Legal action by media companies forced Replay TV to remove many features such as automatic commercial skip and the sharing of recordings over the Internet,but newer devices have steadily regained these functions while adding complementary abilities, such as recording onto DVDs and programming and remote control facilities using PDAs, networked PCs, and Web browsers.
Many DVRs use the MPEG format for compressing the digital video.Video recording capabilities have become an essential part of the modern set-top box, as TV viewers have wanted to take control of their viewing experiences. As consumers have been able to converge increasing amounts of video content on their set-tops, delivered by traditional ‘broadcast’ cable, satellite and terrestrial as well as IP networks, the ability to capture programming and view it whenever they want has become a must-have function for many consumers.
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