What is M2TS?
M2TS is a filename extension used for the BDAV MPEG-2 Transport Stream container file format. It is used for multiplexing audio, video and other streams. It is based on the MPEG-2 transport stream container. This container format is commonly used for high definition video on Blu-ray Disc and AVCHD.(From Wikipedia)
If you happenly want to convert MKV to M2TS, AVS Video Converter - a powerful MKV to M2TS Converter mentioned in this passage is your best choice, the Video Converter can make the conversion routine excellent in quality and speed. Now you can free download the MKV to M2TS Converter, and follow the guide below to have a experience.
Tips: If your computer is running Mac OS, please have a try Mac Video Converter!
Step 1: Install and launch the MKV to M2TS Converter
You can follow the wizard to complete the installation task, and then start the software by double-clicking the shortcut icon of the program.
Step 2: Add MKV files
Click the upper "Browse..." button to select MKV files as your input.

Step 3: Setup the parameters
Press the "To M2TS" button on the toolbar by clicking the download arrow, and press the lower "Browse..." button to set the root directory for the converted files.

Step 4: Start the MKV to M2TS Conversion
When everything is all right, just click the "Convert Now!" button to start converting MKV to M2TS.
Not only can convert MKV to M2TS, DVD, MP4, WMV, MPEG, MOV, and so on, the MKV to M2TS Converter also can convert almost any popular video formats to MKV, that's to say, the powerful MKV to M2TS Converter can convert between almost all popular video formats.
Related Links: Convert AVI to MKV, Convert MP4 to MKV, Convert ASF to MKV