Do you have a HD camera, the following information may help you know better when using your camcorder, if you are not familiar with camcorder, any of it may solve your trouble, and the last I will give you the guide on how to convert videos to MTS format. Please look the following text step by step.
Chapter 1 : How much do you know about MTS and M2TS?
According to Wikipedia, both MTS and M2TS are Sony high definition video file types, which are raw AVCHD videos recorded by AVCHD camcorders such as Sony HDR-SR1 camcorders. And m2ts files usually record onto 8cm mini DVDS or blue-ray DVDS, SD memory cards and Memory Stick, or record onto hard drive camcorder.
Chapter: 2 Introduction of AVCHD
AVCHD (Advanced Video Codec High Definition) is a high-definition and standard-definition recording format for use in digital tapeless camcorders. The format is comparable to other handheld video camera recording formats, particularly TOD, and HDV.
Chapter: 3 Why Convert MTS/ M2TS to AVI, MP4, MPEG, WMV?
If someone used to have m2ts or other AVC HD videos, he would be frustrated that there are so little devices which support m2ts video. Normally, you can only play your m2ts video directly from a camcorder on a HDTV with a HDMI, or play on a Blu-ray Disc player.
However, have you imagined playing your mts/m2ts videos on your iPad, iPhone, iPod, PSP, PS3, Xbox, Zune, Archos, mobile phones, etc. A workable method to do that is necessary. iCoolsoft MTS Converter is your best choice. For mac tools :MTS Converter for Mac , Here are HD Video Converter ,which convert HD video to MP4, M4V, RM,and convert MTS to HD videos is aiso available on mts converter.
Camcorders Supported
? GZ-HM300BUS, GZ-HM320BUS, GZ-HM340BUS, GZ-HM550BUS, GZ-HM1SUS, GZ-HM200BUS, GZ-HM200AUS, GZ-HM200RUS, GZ-X900US, GZ-HM400US
? Panasonic AG-HSC1U, Panasonic AG-HMC70, Panasonic AG-HMC150, Panasonic AG-HMC151E, Panasonic AG-HMC152 ? Sony HDR-CX6, CX7, Sony HDR-CX12, Sony HDR-CX110
? Sony HDR-SR1, SR5, SR7, SR8, SR5C, Sony HDR-SR10, SR11, SR12
? Canon HR10, Canon HG10
? Canon HF10, Canon HF100, Canon HF20, Canon HF200
How to convert MTS/ M2TS to AVI , MP4, MPEG, WMV?
Free download and install iCoolsoft MTS Converter to your PC. Step 1: Click "Add File" button to add videos you would like to convert. The "File" menu can also be used.
Step 2: You can select the Audio Track and Subtitle, specify the output format, and set the output destination at the bottom of the main interface like the following
Step 3: Select a video and use "Effect, Trim, Crop" buttons on the tool bar to edit videos as you like.
You can click button to adjust Brightness, Contrast and Saturation. You can also check "Deinterlacing" checkbox to avoid mosaic and improve the quality of the video.
Step 4: Click button 
to start converting videos to MTS format.
iCoolsoft MTS Converter supports batch conversion, which means you can convert several files to different formats at the same time. Easy-to-use and time-saving as it is, it is definitely the best choice for you!