What is a WTV file? Video file recorded by Windows Media Center, a program used to play multimedia content and record TV shows; encodes video using MPEG-2 compression and audio using MPEG-1 Layer II or Dolby Digital AC-3 compression; may also include descriptive metadata and digital rights management ( DRM ) information.

More Information WTV files are created by the Stream Buffer Engine (SBE) when Windows Media Center records a television show. They are saved in the \​Users\​public\​Recorded TV\​ directory by default. Recorded shows can be opened and played back within Windows Media Center. The WTV file format replaced the previous .DVR-MS file format in the Windows 7 version of Windows Media Center. WTV files can be converted back into DVR-MS files by right clicking them in Windows Media Center and selecting the "Convert to .dvr-ms Format" option.