MP4 is a multimedia container format, which most commonly used to store digital video and digital audio streams, especially those defined by MPEG, but can also be used to store other data such as subtitles and still images. The video coding usually adopts H.264 or AVC, audio encoding using AC-3, the resolution is up to HD or Full HD standard format such as HD 1920 * 1080, or 1440 * 1080, catering to high-definition era, which is also a Blu-ray standard format. MTS video format is an emerging high-definition video format, common in the video file recorded by Sony HD DV, and the video shot by Panasonic high-definition cameras is also the MTS format.
Best MTS to MP4 Converter - Convert MTS to MP4 for Apple device