HEVC or h.265 is the most advanced codec for now because it has the lowest bitrate without losing the image quality. The codec has three main features that distinguishes it from others: parallel decoding, random access to images within the video stream and larger maximum block size. HEVC is aimed to offer the same level of video quality as AVC (h.264), but with improved compression, that is why a video file compressed with the codec will be twice smaller.

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.