The AVCHD files are not very suitable for editing, so you might want to convert them into a .MOV for more trouble free playback and editing.
I have found two apps that does this easily for you if you’re on a MAC. I use one of them all the time, and just love it.
These apps Re-Wraps the h.264-file from the AVCHD-codec into a independant .MOV-file with no rendering, converting or loss of quality. The information in the file is not changed, only the «wrapping» is changed. And the other great benefit is that it only takes 1-10 seconds per file, and the size of the file does not change either. It is really fast, and you’re left with a usable .MOV-file in the h.264 format.
The best one I have found, and the one I use, is free and is called Media Converter.
To have this app do what you want it to do, you also need to download a set of settings for it.
Step-by-step getting it and installing:
-Download the Media Converter-app here and install
.
-Go to http://media-converter.sourceforge.net/presets.html and download "Re-wrap AVCHD for Quicktime with uncompressed audio".
-Open "Re-wrap AVCHD for Quicktime with uncompressed audio" that you just downloaded
.
Using Media Converter:
-Open Media Converter
-In the "Convert To:"-drop-down menu you choose "Re-wrap AVCHD for Quicktime with uncompressed audio"
-Select the .MTS-file(s) in a Finder-window that you want to convert, and drag-n-drop them onto the Media Converter app where it says "Drop files here"
-Choose a place to save the new .MOV-file(s) and you’re done.
-Wait for it to finish and enjoy your .MOV-files.
Alternative number two is $50, and is called Clip Wrap
This app has everything you need ready to go. If you want to Re-Wrap a .MTS-file to .MOV you choose "Rewrap (Don’t alter video samples)" on the drop-down menu under Output format.
I have found that with Media Converter the .MOV-file is only 0.1 - 0.3 MB smaller than the original .MTS-file. With Clipwrap the files become a few MB bigger. Why this is happening I don’t know, but I much prefer Media Converter myself.
Both these apps also convert all kinds of movie files into other types of movie files, making them smaller or changing the format for your iPad, iPhone, emailing and whatnot.
I always keep my original AVCHD-files as well as the Re-Wrapped ones just in case. But I would better yet prefer a camera that just records direclty to .MOV directly and save me the trouble.