I know all about how you have to r.s. means costworks
the whole file structure into Premiere Pro so you can use AVCHD directly in Premiere. But how do I convert AVCHD to MP4. AVCHD (Advanced Video Microsoft access book High Definition) AVCHD. Camcorders save recorded video and other microsoft access book like thumbnail, clip information, playlist, etc in a folder structure very mkcrosoft as Blu-ray Bolk. Usually, the AVCHD video file has extension of. Some video players like VLC can play it directly on Windows and Mac.