The AVCHD format records video using the MPEG-4 AVC/H.264 video codec, and audio in Dolby AC-3. Other than the video and audio codecs, AVCHD also contains menu navigation, slide shows and subtitles. The menu navigation allows access to individual videos from a common intro screen, the slide shows consists of a sequence of AVC still frames accompanied by background audio track, and the subtitles are used to timestamp recordings. .mts is the file extension of AVCHD format which is used to take shoot by Sony, Panasonic, Canon, JVC AVCHD camcorders.
Windows Media Video (WMV) is a video compression format for several proprietary codecs developed by Microsoft. It is supported by many portable media players, such as, PS3, BlackBerry, Archos, iRiver, Creative Zen, Xbox 360, Zune, etc. If you want to play mts video with the player above, you shold convert MTS to WMV first.