What Is an MKV Video File Format?

When you visit the Internet and download movies or TV shows or movies, there’s a high likelihood that you will come across an .mkv file. Whereas MP4 or AVI files can be easily identified by phones and simple media players, MKV isn’t always immediately obvious, leaving many users unsure about what it is and what to do with it. A quick overview of MKV, how it works, and what you can do if you can’t play it.

What Does MKV Stand For?

The Matroska Video (MKV) is the name of this video container. Named after matryoshka, Russian for the traditional nesting dolls of wood that fit one into the other. It’s an excellent name, as MKV is a container format, which is what it implies: it allows multiple elements to be contained inside a single file, like those dolls inside each other. The MKV project was first started in December 2002 by Steve Lhomme and a small group of developers, who were disbanded from a previous project known as the Multimedia Container Format. Over the years, MKV has become one of the most flexible container formats on the market and is 100% free and open source.

What Makes MKV a “Container” Format?

This part is the most confusing, so it is best to explain it clearly. MKV is not a compression technique to save the video files. It does not determine the size or the appearance of the video. Rather, it’s a container enveloping various pieces of media, such as:

• Multiple tracks for videos, for various camera angles or quality versions of the videos
• Multiple soundtracks (speak in different languages or track commentaries)
• Multilingual subtitles, switch between different languages at a single click.
• Chapter markers: you can click on them to jump to the scenes like a DVD menu
• Metadata, such as cover art, fonts or additional file information – and attachments.

This flexibility makes it possible for a single MKV to act nearly like a mini DVD file, with language choices and scene selection, all inside of a single file that may be stored on a computer system.

What is the MKV file format used for?

For a certain type of user, MKV is the format of choice, particularly those concerned about video quality and flexibility. There are a couple of reasons why it has stayed around:

• No licensing fees: MKV is open-source, so it can be used by developers and creators without paying licensing fees.
• Works with nearly all the codecs – MKV is capable of storing video and audio compression using the H.264, HEVC (H.265), VP9, and a lot more formats.
• Ideal for archiving, Movies that are ripped from a Blu-ray or DVD are often stored as an .mkv file to maintain the quality, multiple audio tracks, and subtitles.
• Smaller than raw disc formats, MKV files are usually smaller than the original DVD/Blu-ray source, while maintaining the same quality.
• Actively maintained, there is a dedicated, open-source community that is updating and improving the format.

This is why MKV is so prevalent among the people who download or archive movies and TV shows, as opposed to those who record short clips on their cell phone.

What’s the Difference between MKV and MP4?

The two file formats are frequently compared due to their ability to contain video, audio, and subtitle streams. Mainly, it is a matter of compatibility and use.

To put it simply, MKV is flexible and rich in features while MP4 is compatible. If you just want to view or share a video without any trouble, then MP4 is virtually always a better selection.

Why Won’t My MKV File Play?

This is the most frequent issue encountered by people. The MKV format is not supported by many phones, smart TVs, and simple media players, in which case the file will either not open at all or will display a video but no audio. This is because the device doesn’t have the codec required within this specific MKV file. If you need only to view the file from your computer, VLC Media Player is the simplest solution as it will play MKV files directly on Windows, Mac, and Linux. However, if you’re seeking to play the file on a cell phone, a smart TV, a gaming console, or upload it somewhere on the web, playback will frequently not work, as there is a lack of uniformity in MKV support on these devices.

The Easiest Fix: Convert MKV to MP4

If MKV doesn’t play nicely, then you’ve typically got the quickest way when converting to MP4. Once converted, you won’t have to worry about playback problems because practically every device and platform can play MP4 files. With AhaConvert, this is easily done, as there is a free, no-software-to-install tool that runs in the browser. With the AhaConvert MKV Converter, you can convert an MKV file into a common MP4 in a simple, few-step process:

• Launch the MKV Converter tool on AhaConvert.
• Drag or select your MKV file to upload.
• Select MP4 as an output format.
• Click on Convert and wait for the tool to process the file.
• Download your new MP4 file, which you can play anywhere.

There is no software to install, no settings to work out, no hassle to make the movie play, and no need to make sure it is a format that everyone can play without additional software.

Conclusion

MKV is an extremely versatile and high-quality format designed for the purpose of people who don’t care about video quality, soundtracks, or subtitles, which is the drawback: not being universally supported. If your MKV file works fine on your computer, but not on others, you can convert it to MP4 using a program such as AhaConvert to obtain a video file that will play anywhere without losing all the content you already have.