The next guide will show you how to convert TS and MTS files on Mac, so you can enjoy your TS and MTS on any player.

Part One: How to convert TS to AVI/MPEG/MP4/MOV/MKV/WMV on Mac

You need download TS Converter for Mac, install and run it on your Mac computer.

Step 1: Add Files
Click "Add Video" button to add Video and audio files you want to convert.

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Step 2: Set output formats and output destination.
Click “Profile” and choose one of the output formats of drop-down list.
Click “Browse” to set the output path.

Step 3: Edit files.
Edit video effect you need click “Effect” button to enter the effect functions.

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Step 4: Start to convert.
Click “Convert” button to start convert your TS videos, several minutes later, you will get perfect video files.

Part Two: How to convert MTS files to AVI on Mac OS X

Download and install MTS Converter for Mac, double click to open this program.

1. Select your wanted files by "Add File" button to deal with it for you.

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2. The easiest and quickly way to find the right output format and the right category is setting the profile from the drop-down list.
Tips: Setting the parameters of the encoder, resolution, frame rate only need you to click "settings" button to give the clear setting.

3. Easy for you to find the output folder by clicking on "Browse" button.

4. Click "Convert" button to convert the files for you.

If you want to convert M2TS files on Mac, I think you can use M2TS Converter for Mac software.