AVCHD is a video codec designed for recording high definition videos in 720p, 1080i and 1080p modes on such rewritable discs as Blu-Ray and AVCHD, hard disks and memory cards. The AVCHD standard implies using of AVC video compression format, AC3 audio codec and MTS or M2TS file extension. The main feature of the codec is high compression efficiency together with high image quality. But here comes the main flaw – the codec is really heavy for playback.

M2TS is a file name for BDAV (Blu-ray Disc Audio-Video) format developed by Japanese companies in 2006. It is used for high definition audio and video streaming on Blu-Ray Disc and AVCHD. M2TS can be opened by all popular media players such as Windows Media Player.