Understanding all of the different formats that you encounter in video production and post-production can be overwhelming. We'll try to simplify it here, with a brief overview of AVCHD (files that end in the .mts extension).
AVCHD is a newer format for recording HD footage. All AVCHD cameras record to file-based storage - hard disks, dvd discs, SD cards, etc. Typically, the files that are recorded end in mts or m2ts, usually inside of a "BDMV" folder. Similar to HDV, they’re MPEG transport streams, but in this case they contain H.264 video and AC3 audio.
Your Mac doesn’t know how to play mts files. But it does know how to play H.264 video and (with the right plugins) AC3 audio. ClipWrap can unlock that data.
ClipWrap gets to the juicy video and audio inside that mts file, and wraps it up in a Mac-friendly QuickTime MOV file. It’s like putting a painting in a new frame - the picture stays the same, but the enclosure changes. Unlike other applications, ClipWrap does this without time consuming, quality-sapping transcodes - conversion is quick, lossless, and easy.