AVCHD to MP4 - Quick and Simple Video Conversion Tutorial

Ever tried playing an AVCHD video only to find your device refuses to open it? You are not alone. Converting AVCHD to MP4 can fix this instantly and make your videos compatible with almost any player. In this guide, we explore several easy methods from free software on Windows and Mac to online converters and clever camera tricks, so you can pick the approach that fits your workflow. You will also find tips to keep quality high and conversion smooth.

Easy Method 1: Free Software (Windows/Mac)

Desktop software provides you with a reliable and effective way of converting AVCHD format to MP4 in case you wish to do so. AVAide MP4 Converter is operational on Windows and Mac, giving it fast conversions and high-quality output. It can also handle large volumes of files at any time, thus it is suited to bigger projects, as it is designed to support batch processing.

Speed and quality are its strong points. The program processes large files in minutes while keeping the video sharp and clear. Since it also supports many formats besides MP4, it is a versatile tool that fits different workflows. For a dependable solution, AVAide MP4 Converter is a great choice.

Step 1You can download the MP4 converter on your PC by clicking the download button we have here. Then, install the app promptly so you can proceed to the next steps.

Step 2Click Add Files to import the AVCHD file that you have downloaded or saved on your computer. Here, you can upload multiple AVCHD files or other video formats and convert them into the selected video format you want.

Step 3Hit the output format button to set the format to MP4 and the settings to the format that you want to achieve, which is listed here.

Step 4After that, click the Convert All button to start the process and save the format to MP4 on your PC.

Easy Method 2: Online Converter

If you only have a few AVCHD files and do not want the hassle of installing software, the best option is to convert AVCHD to MP4 online. OnlineConverter.com is a straightforward tool where you simply upload your video and download the converted MP4 file once it is ready.

It is designed for ease of use, making this free online FLC to 3GP converter a good fit for quick fixes. Keep in mind that large files may take longer to upload, but for short videos, it is fast and effective. If convenience is your top priority, OnlineConverter.com gets the job done.

Step 1Go to its main website, click Select Target Format, and set it to Convert to MP4.

Step 2Here, select Choose File to upload the AVCHD file that you want to convert into MP4.

Then, manually set the output settings based on your needs as you scroll down.

Step 3Hit the Start button to process and download the converted AVCHD file on your PC.

Easy Method 3: Sony Camera Trick

For Future Recordings:

If you are using a Sony camera, you can directly change the recording format so that your future videos won't require conversion. This method lets you record in a format that's easier to edit or share right away.

Step 1Press the Menu button on your camera and scroll down to select System, then press the SET button.

Step 2Under the System menu, scroll down and choose Codec or File Format depending on your camera model.

Step 3From the available options, select either XAVC S (MP4), then press SET to confirm.

Step 4To verify the change, return to the Codec/File Format setting and check the selected format.

For future recordings, this adjustment ensures your Sony camera will automatically save videos in MP4. That way, you won't need to convert AVCHD to MP4 later, since the files are already recorded in the right format.

For Existing Videos:

Certain Sony cameras have the useful feature of being able to convert earlier recorded AVCHD videos for direct playback. This option enables you to make an MP4 of your videos without using a computer or other programs. Note that this feature is model-specific and not every Sony camera has this feature. When your camera has the feature, you can easily transfer your AVCHD collection to MP4, which can then be easily edited, shared or played on a variety of devices.

Tips & Tricks for AVCHD to MP4 Conversion

1. Keep Original AVCHD Files as Backup

Before converting, always save a copy of your original AVCHD files. This ensures you can restore the original quality if anything goes wrong during conversion. Backups are especially important when comparing AVCHD vs MP4, as the formats handle video differently, and you may want to retain the AVCHD version for editing later.

2. Use Batch Conversion for Large Collections

If you need to convert a huge AVCHD collection to MP4, it may be time-saving and effort-saving to use software that can handle batch processing. Multivideo conversion guarantees that it is more efficient, especially when working on long projects or a large media folder.

3. Check Output Settings Before Converting

Check the resolution, bitrate, and format options and then begin the conversion. The correct output settings will ensure that your MP4 files will be played on your target devices. These parameters can be adjusted in order to balance the file size and video quality.

4. Label Converted Files Clearly

Sort converted files with descriptive names, with dates or format attribute. This simplifies the process of differentiating between the originals and MP4 formats and prevents unintended overwrites.

5. Consider Online Converters for Small Files

Online converters such as onlineconverter.com are useful in quick conversions, but only work best with short clips. Desktop software is more reliable in the case of large files. This is an especially useful tip when you are interested in converting AVCHD to MP4 Mac without using bulky applications.

6. Keep Your Software Updated

Always upgrade the video conversion software. Updates are better, have quicker conversions and can be compatible with newer formats. They remain up to date in order to perform smoothly and with increased output.

7. Test Playback Before Deleting Originals

Once converted, play your MP4 files to ensure that they play well and are of good quality in a 4K video player. The original AVCHD files should only be deleted after one is sure of the conversion.

8. Plan Your Sony Camera Settings for Future Recordings

When you are using a Sony camera, turn the camera to XAVC S (MP4), rather than AVCHD. This minimizes the necessity of subsequent conversion, and your workflow is efficient. Tools such as the AVCHD MP4 converter free can also be used by users who want to manage and convert videos without extra expenditure.

By Sylvie Hyde on Sep 19, 2025