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AVI Issues
1.1 What Is AVI
1.2 Free AVI Recorder
1.3 Repair AVI
Convert AVI
2.1 AVI to DivX
2.2 AVI to GIF
2.3 AVI to iMovie
2.4 AVI to M4A
2.5 AVI to MPEG
2.6 AVI to SWF
2.7 AVI to TIVO FORMAT
2.8 AVI to WebM
2.9 AVI to WMV
2.10 GIF to AVI
2.11 HandBrake Convert AVI
2.12 MP3 AC3 WAV to AVI
2.13 VLC Convert AVI
2.14 VOB to AVI
2.15 WebM to AVI
Edit AVI
3.1 Compress AVI
3.2 AVI Video Editor
3.3 Clip/Trim/Cut AVI
3.4 Combine AVI Files
Video Glossary
What Is MKV File
What Is MOV File
What Is a WMV File
What Is WebM
What Is a IFO File
What Is DTS
What Is FLV
What Is M2TS
What Is M4V
What Is 3GP
What Is MPG
What Is GIF
What Is SWF
What Is BNK File
What Is MSWMM
What Is AMV
What Is DivX
What Is QCP File
What Is MXF File
AVCHD vs MP4
MKV vs MP4
AVI vs MP4
MOV M4V vs MP4
HEIF vs JPEG
MTS vs M2TS
MP3 vs MP4
What Is MP4

What Is an AVI File? How to Open & Convert AVI (Windows/Mac)

What Is an AVI File? How to Open & Convert AVI (Windows/Mac)

Summary:

AVI is a video container introduced in 1992 by Microsoft with Video for Windows. It can contain video and audio streams encoded with DivX and Xvid. AVIs use low compression, resulting in larger file sizes than modern video formats.

I have an AVI file that’s huge, and it won’t play on my Mac. Is something wrong with the file?

Dealing with the same problem is a common frustration with legacy video files. AVI’s low compression makes the file size larger, while its codec compatibility issues cause playback problems on newer devices. This post will explain what is AVI further and why it behaves differently from newer formats. You’ll also learn how to play it on different devices and convert to modern formats when needed.

What Is AVI

What Is an AVI File?

Defining Audio Video Interleave Format

AVI file is a container format introduced in 1992 by Microsoft. It is created as part of Microsoft’s Video for Windows technology. It can contain synchronized media streams encoded with Xvid and DivX codecs in one file.

AVI Variants:

1. DV-AVI, or Digital Video AVI, is a type of AVI container that wraps Digital Video (DV) encoded video and audio data.

2. An uncompressed AVI contains raw video and audio data wrapped in an AVI container, with no compression applied.

3. H.264-AVI is a combination of container and codec: H.264 is the codec used in AVI to compress the video inside the AVI container.

PROS

  • Excellent sound fidelity.
  • Stores HD and Full HD video.
  • Perfect for storing and ripping DVD videos.

CONS

  • Poor Apple support.
  • Takes up too much unless compressed.

How to Open AVI Files

Windows

Media Player as AVI Player

Windows 11’s default Media Player app can play AVI, but success depends on the codec used. The default player only supports MPEG-4, MJPEG, or Uncompressed PCM/MS ADPCM audio.

Mac/iPhone

Elmedia Player as AVI Player

Apple devices, including Macs and iPhones, have no native support for AVI playback. To open AVI files on iPhone/Mac, you need to use a dedicated AVI player.

VLC

VLC Media Player as Free AVI Player

If Windows, Mac, or iPhone refuses to play AVI videos, use VLC Media Player. It can play almost any media file you name, including AVI encoded with old and standard codecs.

AnyMP4 AVI Player

AnyMP4 AVI Player is a premium player with advanced playback features and HD media support. Aside from Blu-rays, it can also play any file you throw at it, including AVI. It supports AVI containers encoded with DivX, XviD, H.264, MSMPEGV3, MSMPEGV2, and MJPEG.

Here’s how to open AVI files:

1. Download AnyMP4 AVI Player, install it, and complete the setup.

Free Download For Windows

Secure Download

Free Download For macOS

Secure Download

Click Open File in the home interface and select the AVI video you want to open.

Open AVI File in AnyMP4 Blu Ray Player

2. After loading, it will start playing immediately. You can use the controls below to pause, resume, and stop the AVI playback.

Start AVI Playback in AnyMP4 Blu Ray Player

AnyMP4 AVI Player can efficiently handle HD video streams, traditional, and legacy encoding formats. Its hardware acceleration can also process heavily compressed AVIs without buffering.

How to Convert AVI Files

Offline Solution

AnyMP4 Video Converter Ultimate is a secure conversion software that converts AVI to MP4 locally. It can process hundreds of AVI videos simultaneously without lag or crashes. AnyMP4 also uses the most advanced hardware-accelerating media processing to achieve a 120× conversion speed.

1. Download the FLV-to-MP4 converter and complete the installation. After setup, the software opens to the Converter tab and click +Add Files to import the AVI videos.

Import AVI Files in AnyMP4 Video Converter Ultimate

2. Head to Output Format and select MP4 under the Video category. Select Same as Source as your quality preset to convert AVI to MP4 without losing quality.

Set MP4 as Target Format in AnyMP4 Video Converter Ultimate

3. Back to the main interface and turn on Hardware Acceleration to speed up the conversion. Set the folder path, then click Convert All to start the conversion.

Convert to MP4 in AnyMP4 Video Converter Ultimate

AnyMP4 Video Converter Ultimate is a multi-format video-to-video conversion software. It means you’re not limited to converting AVI to MP4. You can also convert AVI to MKV, MOV, WebM, and 500+ other media formats.

Online Alternatives

CloudConvert as AVI Converter

CloudConvert is an online media and file type conversion service that offers a free tier. You can convert an AVI file with a maximum file size of 1 GB to different video formats.

AVI vs MP4 vs WMV

AVI vs MP4 vs WMV are video containers associated with different generations of video technology. This section will help you better understand their distinctions.

AVI MP4 WMV
Developer Microsoft Moving Picture Experts Group Microsoft
Compression Can be both lossy and lossless Lossy Lossy
File Size (3-minute 1080p video) 300 MB to 1.5 GB 110 to 600 MB 150 to 400 MB
Compatibility Windows OS Universal Windows OS
Common Usage Storing, editing, and archiving Storing and streaming Web streaming and home video archiving
Verdict Keep for raw video editing and archiving old media Standard for streaming, sharing, and saving videos Archiving older Windows-based files

AVI Troubleshooting

No Audio

If the video plays but the AVI file won’t play no sound, it contains an audio codec that your default player cannot decode. To fix it, convert AVI to MP4 and set the audio codec to AAC.

Missing Codec

A missing-codec error means the media player cannot decode streams within the AVI container. Be sure to use a media player with broader codec support, such as AnyMP4 AVI Player.

File Too Large

AVI takes up too much space because it often uses uncompressed video. To reduce the file size, you can convert it to a newer format or compress the AVI video directly.

FAQs about AVI Files

What does AVI mean and what is it?

AVI means Audio Video Interleave. It is a multimedia container that can hold video and audio data. It uses various codecs to store compressed or uncompressed data.

Is DivX the same as AVI?

No, they are not the same. DivX is a video compression codec, whereas AVI is a container. Think of AVI as a box, and DivX is the item inside that box.

Which is better: AVI or WMV?

It depends on your intended use. AVI is a better format for editing because it can store uncompressed data. But if you use the file for online sharing, WMV is the better format.

Conclusion

AVI still has a place in media consumption, editing, and video archival. Understanding what is AVI makes the playback problem easier to determine: AVI is a container that can hold streams in different codecs. It means it may work for one player but fail for another. If your default player does not support AVI playback, use AnyMP4 AVI Player for a feature-rich viewing experience. If your goal is to play AVI on Apple devices or share it online, create an MP4 copy using AnyMP4 Video Converter Ultimate. It can convert AVI files, with options to adjust video and audio encoders, frame rate, bitrate, sample rate, and other settings.

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Author Updated by Alice Thorne to Glossary
October 12, 2026 06:00

As a Senior Technical Correspondent, Alice Thorne is a recognized authority on high‑fidelity audio and video converting and recording workflows. She brings deep technical insight into the complexities of format conversion, ensuring that users can navigate codecs and recording software with professional ease. Alice's work is dedicated to helping creators achieve seamless file compatibility and studio‑grade recording quality across all platforms.

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