M2TS to MKV Converter is the best software for user to convert M2TS to MKV file, With the powerful M2TS to MKV converter,you can convert M2TS to MKV with best quality and convert M2TS to all the video formats.The M2TS to MKV software is video converter suite which can convert among all the video formats.
As we know, M2TS and MKV are both containers; they have no bearing on the amount of compression used. I believe an M2TS taken from a Blu-ray or AVCHD disk is going to be a bit bigger than an MKV with the same contents, because the M2TS contains extra file structure information that you don't need. Additionally, when repacking an M2TS into an MKV, people usually remove any audio streams they don't want. There's no point in keeping a French dub of an American film if you can't speak French. If you want to use a stand-alone device like a HTPC, Popcorn Hour or a Western Digital player, you'll probably have better compatibility with the MKV container.
For Mac users, M2TS to MKV Mac program is capable of converting any M2TS files to MKV (Matroska) video, AVI, MOV, MPEG, MP4, H.264/MPEG-4, WMV, FLV and more HD/SD files with superfast speed and perfect video/audio synchronization. And you can keep the original audio tracks/subtitles or just select your desired one.
How to convert M2TS files to MKV easily
Step 1: Load M2TS files: Launch the program, Click "Add files" icon to import M2TS files AVCHD camcorders, batch conversion is supported to save you a lot of time.
Here this program supports AVCHD MTS/M2TS, M2T, TP, TRP files as input.
If you wanna join the input files together, just check the "Merge into one file" option.
Step 2: Configure output settings: Click the 'Format' drop-down list and choose the output format as MKV (Matroska) Video or MKV HD video accord to your need.
Optional: Here you're allowed to do more settings like customizing video codec, size, bit rate, frame rate, audio channels, etc. Basically the M2TS is a typical format with high definition, normally in 16:9 aspect ratio. You are advised to set 1920*1080 or 1280*720 as video size in order to avoid stretched image.
Step 3: Edit input M2TS files (Optional)- click 
Step 4: Convert AVCHD M2TS to MKV- Click "Convert" button to begin the conversions immediately.
To sum up, no matter your source of M2TS video is ripped off from Blu-ray Disc or AVCHD recording, one thing you need to note is that - if you want to use a stand-alone device like a HTPC, Popcorn Hour or a Western Digital player, you'll probably have better compatibility with the MKV container than M2TS.
