The MP4 format has been designed to support audio, video, subtitles, images, etc., encoded utilizing multiple codecs. An MP4 video file includes the .mp4 extension, while the audio file consists of a .m4a file extension. This difference helps you to distinguish between audio-only and video MP4 files. You must have realized that irrespective of the system or platform you take up, MP4 is the accepted universal format. Hence, the popularity of mp4 converter software tools has also gained immense popularity.

What is MP4 File Format?

It is regarded as the most popular and widely used video format for downloading, sharing, and streaming videos. Apart from the video content, MP4 format can also seamlessly store audio, subtitles, images, and so on. Because MP4 is a container format, it has the potential to store multiple kinds of audio, videos, images, and other data that are encoded in MP4 format codec.

Because MP4 format renders strong video compression, superior quality videos are assured. As such, it is ideal for downloading and streaming videos online. It won’t be wrong to mention that MP4 acts as a wrapper around different multimedia files and relevant data for playing the files correctly.

MP4 Files: Structure

Because MP4 is a container format, there is no rigidity in its structure. It can be stretched, which indicates that you can come up with a tailor-made structure for data. You will find that MP4 files are categorized into two parts.

1. Media-associated data that includes both audio and video

2. Metadata that consists of timestamps, random access and flags

An independent element of an MP4 file is known as an atom. The tiniest size of an atom is around 8 bytes, where the first bytes indicate the atom’s size. Additionally, the next four bytes of the atom refer to the type.

MP4 Files: Extensions

MP4 can support multiple multimedia files. Therefore, it is available in different filename extensions.

·        .mp4 is the official and the most popular extension featuring both audio and video content

·        .m4a includes only audio content and is mostly found in iTune music and voice memos of iOS devices

·        .m4b extension is mainly for podcasts and audiobooks

·        .m4v file extension is an ideal choice for visual bitstreams and video streaming in MP4 files

·        .m4r is used in iOS device ringtones

Pros of MP4 Format

The benefits of MP4 files are the reason behind the significant rise in the use of mp4 converter software programs.

Broad Compatibility

One of the best aspects of the MP4 format is its extensive support by the majority of operating systems, software media players, electronic devices, open source players, and so on.

Extensive Data Support

Seamlessly supports metadata and extra data stored including PDF files, PNG and JPEG images, subtitles, and so on.

Supports Interactive Elements

MP4 format supports video clips and content with 3D visuals, VR videos, navigation choices, and so many other interactive components.

Multiple Variants

MP4 offers multiple variants, like .m4a for audio-only files, and .m4v for visual streaming.

Strong Video Compression

Thanks to strong video compression, MP4 files are small, which is ideal for large-scale storage, and online streaming.


In the era where a wide array of file formats co-exist, MP4 is a popular choice, particularly because of its excellent compatibility. It can widely support smartphones, computers, tablets, smart televisions, web browsers, multimedia software, and so on. MP4 has emerged as the most popular file format in the digital world. You will find videos, audio, and other data stored in MP4 files on online video platforms, smartphones, digital cameras, and so on. Thus, the need for mp4 converter software has also substantially increased in the last few years.