WTV (Windows Recorded TV Show File) is a video format recorded using Windows Media Center (WMC). WMC is a program for recording TV shows and playing multimedia content. WTV uses the MPEG-2 compression standard for videos and Dolby Digital AC-3 or MPEG-1 Layer II for audio. Some WTV files might include metadata as well as DRM protection.
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OGG is a free audio container format developed by Xiph.Org Foundation. Its unrestricted design offers efficient manipulation and streaming of high-quality digital multimedia. It multiplexes multiple streams for video, audio, text, and metadata. OGG has a filename extension of .ogg, although it can also come in .ogv, .oga, .ogm, .opus, and .spx.
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