MTS or M2TS format is the equivalent of h.264 or MPEG-4 AVC. It is a fairly new High Definition codec that provides greater compression than the regular MP4 and others. Those two High Definition format always be used on HD Camcorder, such as Sony, Canon or Panasonic.
As they are HD video, most of our video editor such as windows movie maker can not edit it directly. And also you can not upload it to youtube.com and share with your friends.
So you need to convert them into normal video format, such as wmv, mp4, avi and so on.
Here I know a really powerful MTS Converter and M2TS Converter
And the process of operation is really easy and fast.
Part 1: How to convert MTS video
Step 1: Load Video
Click "Add File" to load the video that you want.
Step 2: Choose Your Output Profile and Settings
From "Profile" drop-down list you can choose your output profile according to your need.
For example, if you have a iPod and you want to convert video for it, you need to choose "iPod" from the profile list and then it also provides the second chance to specify your iPod generation.
You can also click "setting" adjust the settings of your output video, such as "video/audio encoder", "Video/audio Bitrate", "Channels", "Resolution" and so on..
Step 3: Conversion
After you have done all the steps above you can click "Start" button to start your conversion.
Part 2: How to convert M2TS video
Step 1: Add File
Load your M2TS video.
Step 2: Choose Profile and Settings
Select your output profile according your need and adjust the settings of your output video if you like.
(the default setting works well)
Step 3: Start Conversion
Click "Start" to begin your conversion.
Here I also recommend you a really nice HD Video Converter, which can convert HD TS, HD MTS, HD M2TS, HD MPEG, HD WMV, HD MPG, HD MP4, QuickTime HD MOV, HD H.264, HD RM video, etc