Published on Aug 22, 2025 3 min read

Convert H.264 Videos to AVI with HD Video Converter: A Step-by-Step Guide

Have you ever encountered an H.264 video that just won’t play on your older media player or editing software? You’re not alone. While H.264 is a popular and efficient format, converting it to AVI—known for its compatibility—can be the solution you’re looking for. In this guide, we’ll walk you through converting H.264 to AVI using the HD Video Converter, making the process simple and jargon-free.

Why Convert H.264 to AVI?

H.264 is behind most online videos, smartphone recordings, and digital camera footage. However, some older media players or editing tools struggle with it. Converting to AVI, a more universally compatible format, can resolve playback and editing issues.

Step-by-Step Conversion Guide

Step 1: Download and Install HD Video Converter

To get started, download HD Video Converter from the official site or a trusted software platform.

1. Select the version for your operating system (Windows/macOS).
2. Double-click the downloaded file and follow the installation prompts.
3. Launch the program after installation.

Step 2: Add the H.264 Video File

With the software open, you’ll see a simple interface.

• Click “Add Files” or drag and drop your video into the main window.
• The converter supports formats like .mp4, .mkv, .mov, and .flv.
• Verify the file size and duration to ensure it loaded correctly.

Step 3: Choose AVI as the Output Format

Select AVI for your target format.

• Click the Output Format section (either a dropdown or grid of icons).
• Under the “Video” category, select AVI.
• The software will choose a compatible codec, usually DivX or XviD.

Step 4: (Optional) Adjust Output Settings

For more control, adjust the settings:

• Video codec: Stick with XviD or DivX for AVI.
• Resolution: Downscale from 1080p to 720p to reduce file size.
• Frame rate: Maintain the original unless necessary.
• Audio format: Use MP3 or AC3 for general playback.

Access these adjustments through Settings or Advanced Options.

Step 5: Select the Output Folder

Choose where to save your converted AVI file.

• Click “Output Folder” and select a location, like the desktop or a “Converted Videos” folder.
• Ensure there’s enough space for the file size.

Step 6: Start the Conversion

You’re ready to convert.

• Click “Run” or “Start” to begin.
• A progress bar will indicate the conversion status.
• Smaller videos convert quickly, while larger HD files may take a few minutes.

Step 7: Test the Output File

Before closing the software, double-check the AVI file:

• Ensure it plays properly.
• Confirm audio and video sync.
• Look for visual glitches.

Use VLC or Windows Media Player for playback tests. If issues arise, try converting again with different settings, like lowering the resolution or bitrate.

Why Choose HD Video Converter?

User-Friendly Interface

HD Video Converter’s interface is intuitive and doesn’t require you to be a tech expert. It offers both simplicity and advanced options without overwhelming users.

Fast Conversion and Batch Processing

The software utilizes hardware acceleration to speed up conversion times, especially for large files. It also supports batch conversion, saving time on multiple files.

Minimal System Impact

The converter runs smoothly without slowing down your computer, allowing you to multitask while converting videos.

Wide Format Support

Beyond H.264 to AVI, HD Video Converter handles various formats like MP4, MOV, WMV, MKV, and more. It offers device-specific profiles for iPhones, Android devices, and smart TVs.

Conclusion

Converting H.264 videos to AVI doesn’t have to be complicated. HD Video Converter streamlines the process, making it accessible and efficient. Whether for compatibility, editing, or sharing, this tool offers user-friendly and reliable conversion. Next time you face a stubborn H.264 file, try this method for a seamless conversion experience.