Files that contain the .mts file extension are AVCHD video files. AVCHD is an acronym for Advanced Video Codec High Definition. These MTS files contain high-def MPEG transport stream videos that have been captured by certain video camcorders.
The MTS file format was designed by Panasonic and Sony for use with their HD camcorder devices, although Canon, JVC and Sanyo camcorders now also use the MTS file format.
MTS files containing high-def video streams and can support both the 720p and 1080i HD video formats. The files can be played back on a user's computer using a variety of software applications including the Windows Media Player.
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