AC3 Format Not Supported Error in MX Player: Fixed [2023] – TechDisko


In the age of streaming and digital entertainment, video players are essential for enjoying content across various devices. One such popular video player is MX Player. A common problem that many users face while using MX Player is the “AC3 format not supported” error. In this article, we’ll discuss the AC3 format, why it’s not supported by MX Player, and how to fix this issue.

Understanding AC3 Format

AC3 format explained

AC3 (Audio Codec 3) is an audio format created by Dolby Laboratories. It is primarily used in surround sound systems, such as those found in movie theaters and home theater setups. AC3 provides high-quality audio with minimal file size, making it an ideal choice for various digital media.

Why AC3 format is popular

The AC3 format is popular due to its capability to deliver high-quality, multi-channel audio at a relatively low bitrate. This makes it perfect for use in DVD, Blu-ray, and digital streaming formats. Many movie and television production companies use AC3 to provide an immersive audio experience for their audiences.

MX Player Features

Video playback capabilities

MX Player is a popular video player for Android devices, known for its user-friendly interface, hardware acceleration, and gesture controls. It also supports a wide range of video and audio formats, making it a versatile option for users looking to enjoy their media files.

Supported formats

MX Player supports most common video and audio formats, including MP4, AVI, FLV, MKV, and many more. However, due to licensing issues, it doesn’t natively support some audio formats like AC3, DTS, and MLP.

AC3 Format Not Supported Error in MX Player

Reasons behind the error

The primary reason for the “AC3 format not supported” error in MX Player is the lack of a built-in AC3 codec due to licensing restrictions. As a result, users need to install the appropriate codec manually or use alternative players that support AC3 format.

Impact on users

When encountering the “AC3 format not supported” error, users may experience disrupted video playback or no audio output at all. This can be frustrating for those trying to enjoy their favorite movies or TV shows on their devices.

Fixing the AC3 Format Not Supported Error

Installing custom codecs

One way to fix the AC3 format error in MX Player is by installing custom codecs. These codecs can enable support for AC3 audio, allowing users to enjoy their content without any issues.

Using alternative players

Another solution is to use alternative video players that natively support the AC3 format. These players can offer a hassle-free experience for users without the need to install custom codecs.

Step-by-step Guide to Install Custom Codecs

Downloading the codec

  1. Visit a trusted website to download the custom codec pack for MX Player. One such source is the XDA Developers forum.
  2. Ensure that you download the correct codec pack compatible with your device and MX Player version.

Installing the codec

  1. Launch MX Player on your device.
  2. Tap on the three vertical dots in the top-right corner to open the menu and select “Settings.”
  3. Navigate to “Decoder” and scroll down to the “Custom Codec” section.
  4. Tap on the “Custom Codec” option, and a file browser will open.
  5. Locate the downloaded codec pack and select it. MX Player will then ask you to restart the app to apply the codec.

Verifying codec installation

  1. Open MX Player again after restarting.
  2. Go to “Settings” > “Decoder” and check the “Custom Codec” section. The name of the installed codec should be displayed.
  3. Try playing a video with AC3 audio to confirm that the error has been resolved.

Alternative Video Players Supporting AC3 Format

VLC Media Player

VLC is a widely-used, open-source media player that supports a vast range of video and audio formats, including AC3. It’s available for Android, iOS, Windows, macOS, and Linux devices.


KMPlayer is another feature-rich video player that supports various file formats, including AC3. It’s available for Windows, macOS, Android, and iOS devices.


PotPlayer is a versatile media player for Windows that supports AC3 and other popular audio formats. It offers advanced customization options and smooth playback for a better user experience.

Pros and Cons of Alternative Players

VLC Media Player


  • Supports a wide range of formats
  • Open-source and regularly updated
  • Available on multiple platforms


  • Interface may not be as user-friendly as MX Player



  • Supports numerous file formats
  • Offers advanced playback options
  • Available on multiple platforms


  • Ad-supported on some platforms



  • Supports many formats
  • Offers advanced customization options
  • Smooth playback


  • Only available for Windows


The “AC3 format not supported” error in MX Player can be frustrating, but it’s easily fixable by either installing custom codecs or using alternative video players that natively support the AC3 format. By following the steps provided, you can enjoy seamless video playback with AC3 audio on your device.


  1. Why does MX Player not support AC3 format?
    • MX Player doesn’t natively support AC3 format due to licensing restrictions. However, you can install custom codecs or use alternative players to overcome this limitation.
  2. Is it safe to install custom codecs for MX Player?
    • It’s safe as long as you download the codecs from a trusted source, such as the XDA Developers forum.
  3. Can I use MX Player on other platforms besides Android?
    • Yes, MX Player is also available for iOS, Windows, and macOS.
  4. Are there other audio formats that MX Player doesn’t support?
    • Apart from AC3, MX Player doesn’t natively support DTS and MLP formats due to licensing issues.
  5. Do all video players support the AC3 format?
    • Not all video players support AC3 format. However, popular players like VLC, KM Player, and PotPlayer do support AC3, making them great alternatives to MX Player.
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