How to Turn Sony AVCHD Videos to MP4 in Batch without Losing Quality

Laura Goodwin Jan 03, 2024 Convert Video

AVCHD (Advanced Video Coding High Definition) is a recording format developed by Sony and Panasonic. The AVCHD video format is used by high-definition digital camcorders. The AVCHD file extension is .mts and .m2ts. However, AVCHD files are not compatible with most video editors and players.


During this time, you need an AVCHD to MP4 converter or an AVCHD video player to fix the incompatibility issue. For most users, converting videos from AVCHD to MP4 format is a better choice. You can feel free to edit AVCHD footages directly. Thus, this article will show you 3 different ways to convert AVCHD video to MP4 on multiplatform. Just read and follow.

Specifications AVCHD MP4
File extension .mts, .m2ts .mp4
Video resolution and frame rate Up to 1920 × 1080 Up to 1440 × 1080
Audio channels / Sampled frequency 2 channels/48 kHz
5.1 channels/48 kHz
2 channels/48 kHz.
Video Codec H.264/MPEG-4 AVC H.264/MPEG-4 AVC, HEVC, MPEG-2 Part 2, MPEG-4 ASP, H.263, and others
Audio Codec AAC, MP1, MP2, MP3, AC-3, Apple Lossless, ALS, SLS, and others Dolby Digital
Compatibility Blu-ray discs, camcorders Almost any device and player

Part 1. How to Convert AVCHD to MP4 on Windows and Mac

Here, we recommend two excellent tools we value best, and each is presented with pros and cons. Hopefully, you can find one that suits your needs.

Solution 1. Convert AVCHD to MP4 with Vidmore Video Converter

Vidmore Video Converter is your one-stop solution to convert and edit AVCHD videos. You can convert AVCHD video to any portable device, including iPhone, iPad, Android, Sony PlayStation and more. The AVCHD to MP4 converter software offers over 100 presets for all popular devices and gadgets.

Thanks to the high-quality video processing and acceleration technology, you can convert large AVCHD files to MP4 in batch quickly. The high-quality AVCHD to MP4 converter also provides a built-in lightweight video editor. You can edit, preview and manage Sony AVCHD videos before converting to MP4 freely.

Main Features of the AVCHD to MP4 Converter

Vidmore Video ConverterVidmore Video Converter

  • Convert AVCHD to MP4 and other 200+ video and audio formats, including AVI, MKV, MOV, FLV, WMV, etc.
  • Convert AVCHD video to 100+ optimized preset while maintaining the highiest visual quality.
  • 50x faster video conversion speed than conventional video converters.
  • Built-in video editor to trim, merge, crop, rotate, add watermark and apply other video effects.
  • The Sony AVCHD converter is safe, clean and easy to use.
Vidmore Video Converter


  1. Support 200+ video and audio formats
  2. Cutting-edged conversion technology
  3. Fast video processing without quality loss
  4. User-friendly and concise interface
  5. Support 4K
  6. Allow you to customize your own videos


  1. Free trial version can only support 5 minutes of conversion

How to Convert AVCHD to MP4 without Losing Quality

Step 1. Add AVCHD video

Free download, install and launch the AVCHD to MP4 converter. Drag and drop AVCHD video files to its main interface.

Vidmore video converter interface

Step 2. Choose MP4 profile

Unfold the “Profile” list. Select “MP4” as the output format. You can also choose the certain portable player to get MP4 video format.

Select Output Format

Step 3. Apply video effect (optional)

Click “Edit” to access video editing tools, including “Rotate”, “3D”, “Crop”, “Effect”, “Enhance” and “Watermark”. What’s more, you can click “Clip” to split a long AVCHD video to get the certain clip.

Video enhance

Step 4. Complete AVCHD to MP4 conversion

Click “Settings” next to “Profile” to get “Profile Settings”. Here you can adjust video encoder, resolution, frame rate, aspect ratio and other video and audio settings. At last, click “Convert” to start converting AVCHD to MP4 without quality loss.

MP4 settings

Solution 2. Change AVCHD to MP4 with VLC Media Player

VLC Media Player is a free and open source multimedia player and converter. You can convert AVCHD videos on multiplatform. Well, VLC can be your free application to convert AVCHD to MP4 on Android and iPad. However, it is hard for beginners to use advanced and hidden features in VLC. By the way, the latest VLC update is buggy.


  1. Free and open-source
  2. Support video and audio stream download
  3. Be free to customize the conversion profile
  4. Allow to preview the output during conversion
  5. Features popular codecs


  1. Lack video editing capabilities

Here is a detailed tutorial to change AVCHD to MP4 with VLC:

Step 1. Open VLC Media Player. Choose “Convert/Save” from the “Media” drop-down list.

Step 2. Click “Add” to add one or more AVCHD files. Then click “Convert/Save” to move on.

Step 3. Set MP4 as the output video format in the “Profile” list. Click “Browse” to set a temporary folder.

Step 4. Click “Start” to convert AVCHD to MP4 with VLC.

Convert Avchd To MP4 VLC

VLC is a free AVCHD converter app that you can convert AVCHD videos on Android, iPhone, Linux, Windows, and Mac. You can convert AVCHD to MP4 with HandBrake and other open-source programs, too. These converters help you fix unable-to-play video errors caused by compatibility issues. If the file size of your AVCHD video is small, you can use Vidmore Free Online Video Converter directly. There is no file size limitation or registration required.

Part 2. How to Convert AVCHD to MP4 Online for Free

You can also use an AVCHD to MP4 online converter to change video formats. Vidmore Free Online Video Converter supports batch conversion. You do not need to pay to remove the file size limitation. There are no popping-up ads or virus. To some degree, it can be your best AVCHD to MP4 converter online.

Step 1. Visit Click “Add files to convert” to access its launcher.

Open Vidmore launcher

Step 2. Click “Add File” to add AVCHD files to the online AVCHD to MP4 video converter. Highlight the video and select “MP4” as the output video format.

Add videos

Step 3. Click “Settings” to adjust predefined settings. You can adjust video quality and other options here. Then click “OK” to save changes.

Adjust video settings

Step 4. Click “Convert” and set a path folder to convert AVCHD video to MP4 online for free. When the process finishes, click “OK” in the popping-up “Conversion-complete” window.

Convert AVCHD video to MP4

Part 3. FAQs About Converting AVCHD to MP4

Is the quality of AVCHD better than MP4?

Yes, AVCHD has a better quality than MP4 because of its bigger video resolution and frame rate than MP4 videos. However, it requires a potent player such as Vidmore Player to preserve its original quality.

Can I transform AVCHD to MP4 on Mac?

Vidmore Video Converter allows you to transform AVCHD to MP4 on Mac with original quality. Whether you want to convert AVCHD to other formats or convert MP4/AVI/M4V/MP3 to AVCHD, this converter can be your best choice.

Does MP4 reduce quality?

The quality of MP4 videos depends on the settings chosen in the encoding process. If your MP4 video is converted from other video formats, a powerful converter is a crucial factor. Vidmore Video Converter, equipped with advanced technology, can turn video formats without quality loss and maintain the original quality of MP4 videos.


As for converting large AVCHD videos, definitely Vidmore Video Converter should be your first choice. You can batch convert AVCHD to MP4 videos with the advanced hardware acceleration and multicore processor. The fully customizable output video quality is also useful. You can convert AVCHD to Windows Movie Maker and more with zero quality loss. It is totally free to download and have a try.

MP4 Tips

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