I needed an app that would convert .mts files to play on my Mac. Im using a Sony Cyber Shot DSC-HX9V and unfotunately Apple has not kept up to date with this file type, thus it cant be imported directly in to iMovie. The Pavtube app does the trick, and unlike some of the other free apps I tried, the quality of the video and audio is very good (Im playing it through iTunes using a .mp4 format). The conversion rate is a bit slower than other apps that I have tried, but hey, its free and Im not in a rush and am willing to wait if it means I get the quality conversion that Im looking for.
A different .mts conversion app that I just uninstalled (wont name it here but it ranks high with a lot of positive comments) had poor video conversion and created blockly video when the camera was panned right or left, especially on objecs close to the camera. The Pavtube app has none of those issues and is easy to use. I saw mention of an upgrade that would go direct to iMovie, but couldnt find it in the app store. Keep up the good work!