MKV vs MP4: Pros and Cons for Video Streaming

Wondering which video format is best for streaming? The choice you make can impact the quality and compatibility of your streaming experience, and I’m here to help you understand why.

Read on to learn the difference between MKV and MP4 and their pros and cons so you can decide which format best fits your needs.

Video Format: What Is It?

A video format is a type of file format used to store digital video data on a computer system. It includes the video codec, which compresses and decompresses the video, and the container, which holds the video, audio, subtitles, and other metadata.

Depending on the video format you choose, it can impact the file size, quality, compatibility with different devices, and ease of use. In a very simple analogy, think of a video format as some sort of “jewelry box” that contains “organizers”(e.g. the codecs) that store and show your items in many different ways.

Video Codec Defined:

Before we go deep into the differences between MKV and MP4, let’s talk about video codecs because we will mention these terms later in this blog post.

Basically, codecs comprise an encoder (co) and decoder (dec) for compressing and decompressing videos. Videos are encoded for storage and then decoded when ready for viewing on a video player. Regardless of your chosen video format, video quality will be impacted depending on the codec and compression settings used.

The two most popular codecs used for these video formats are:

H.264: A video compression standard that reduces file sizes while maintaining quality, commonly used for streaming. It balances compression and quality well, making it ideal for most applications.
H.265: An advanced version of H.264 that offers better compression and efficiency but requires more processing power. It provides higher quality at smaller file sizes than H.264 but is more demanding on hardware.

You might say, “It’s good to know this information and all, but I’m editing my live stream to repurpose it. I’m on the rendering stage. Which codec should I use?”

The answer is easy: for most video streaming platforms (e.g. YouTube), you need to choose H264 because this is the codec most platforms would accept.

Now, let’s go continue discussing MKV vs. MP4 format.

What is the MKV Format?

MKV, short for Matroska Video, is a versatile and open-standard multimedia container format. It is often used for high-definition video content and is known for its ability to hold numerous tracks in one file, such as multiple audio streams, subtitle tracks, and metadata.

Main Features

High-definition video: MKV is known to support lossless video compression. It is a type of video compression that can perfectly reconstruct the original file, thus resulting in higher-quality videos.
Supports multiple video, audio, and subtitle tracks: Ideal for multilingual content and special features (e.g. you want to send over a video file on the internet that contains multiple subtitle tracks for different languages).
Chapter support: Allows detailed video information and easy navigation.

✅ Pros

Versatility: Can handle unlimited video, audio, and subtitle tracks.
Quality retention: Preserves the original quality of video and audio files.
Rich metadata: Supports extensive metadata for better organization and playback.
Error Recovery: When your file is corrupted or you encounter an error, it is easier to recover when it’s an MKV file.

❌ Cons

Compatibility Issues: Not all devices, media players, and video streaming platforms support MKV, especially if you want to start streaming on YouTube. Also, it may require additional software for playback and conversion.
Larger File Sizes: High-quality video and audio files (and because of the way it compresses videos) can result in larger file sizes compared to MP4.

What is the MP4 Format?

MP4, or MPEG-4 Part 14, is one of the most widely used video formats today. It’s known for its efficient compression, which balances video quality and file size, making it perfect for streaming and sharing videos online.

Main Features

Efficient compression: Provides relatively good quality at a small file size.
Wide compatibility: Supported by most devices, media players, and video streaming platforms online.
Streaming: MP4 enables progressive playback and adaptive streaming, allowing users to start watching videos while they are still downloading and adjusting to varying bandwidths in real-time.

✅ Pros

Compact file size: Ideal for streaming and sharing over the internet.
Broad compatibility: Works with almost all devices and platforms.
Good quality: Maintains decent video quality even with smaller file sizes.
Versatile: Supports various types of content, including video, audio, and subtitles.

❌ Cons

Limited advanced features: Fewer capabilities for multiple audio and subtitle tracks compared to MKV.
Compression artifacts: MP4 uses lossy compression, which essentially means some data is “discarded in encoding” potentially resulting in lower quality compared to lossless formats like MKV.
Less Error Recovery: MP4 files are more prone to corruption compared to MKV files, and recovery can be more challenging.

MKV vs. MP4: The Main Differences

Choosing between MKV and MP4 depends on factors like quality, file size, and compatibility. Let’s break down the differences between MKV and MP4 to help you decide which format suits your needs best.

Quality

MKV: Generally provides better quality due to less compression, making it ideal for high-definition videos.
MP4: While also capable of high-quality, MP4 uses more compression, which can slightly reduce quality but still offers a good balance for most uses.

File Size

MKV: Typically results in larger file sizes because of its ability to retain higher quality.
MP4: More efficient in compression, leading to smaller file sizes, which is perfect for streaming and storage.

Note: As discussed earlier, depending on the codec used, it can impact the file size as well and not just the video format/container.

Supported Platforms

MKV: Supported by fewer devices and media players, often requiring additional software for playback.
MP4: Widely supported across almost all devices and media players, making it highly versatile and user-friendly.

Versatility

MKV: Extremely versatile, supporting a wide range of video, audio, and subtitle formats within a single file.
MP4: Versatile as well but with some limitations in handling multiple audio and subtitle tracks compared to MKV.

Ease of Use

MKV: Might require additional software and can be more complex to work with.
MP4: Simple and straightforward, easy to use on most platforms without additional tools.

Editing Capabilities

MKV: Offers extensive features for video editing, including multiple audio and subtitle tracks.
MP4: While also editable, it has fewer options compared to MKV, focusing on simplicity and compatibility.

Popularity

MKV: Popular among tech enthusiasts and those who prioritize quality and features.
MP4: Universally popular due to its balance of quality, file size, and broad compatibility.

Metadata Support

MKV: Excellent metadata support, allowing detailed information and easy navigation within the video.
MP4: Good metadata support, though not as extensive as MKV.

Comparing MKV to MP4: Which to Choose?

When deciding between MKV and MP4, consider your specific needs and use cases. Here are some key points to help you make an informed choice:

Quality vs. File Size

If maintaining the highest possible video and audio quality is your priority and you don’t mind larger file sizes, MKV is the better option.
If you need to balance quality with file size, especially for streaming or sharing, MP4 is more efficient and practical.

Device and Platform Compatibility

For the widest compatibility across various devices and platforms, MP4 is the clear winner. It’s supported almost universally, making it the best choice for ease of use.
If you have the means to play MKV files and need the extra features it offers, then MKV can be a great choice.

Use Case

Streaming: MP4 is generally better suited for streaming due to its efficient compression and broad compatibility.
Archiving and Quality: For archiving high-quality videos or when you need advanced features like multiple audio tracks, MKV is more appropriate.
Editing: If you plan to edit your videos extensively, MKV’s support for multiple tracks and rich metadata might be beneficial.
Sharing: MP4’s smaller file size and compatibility make it ideal for sharing videos online and on social media.

So let’s answer the question you have in mind – “Is MKV better than MP4 (and vice versa)?”

The answer, again, is it depends! Ultimately, the choice between MKV and MP4 depends on your specific requirements. For everyday use and streaming, MP4 is often the best choice. For high-quality archiving and advanced features, MKV stands out.

I hope this quick guide has helped you decide which format to use for your videos. If you’re interested in creating more content, consider using Be.Live to live stream!

Be.Live offers a user-friendly platform that makes live streaming simple and engaging, helping you connect with your audience in real time. With its built-in editor, you don’t need to worry about which video format or codec to use. Simply choose the highlight of your stream and download it as a clip. That’s it!!!

FAQ

Which is better quality MKV or MP4?

MKV generally offers better quality due to less compression, making it ideal for high-definition content. However, if you need to upload your video on video streaming sites like YouTube, MP4 is your best choice.

What is the advantage of MKV file?

MKV files support multiple audio and subtitle tracks, rich metadata, and high-quality video, making them versatile and feature-rich.

Why convert MKV to MP4?

Converting MKV to MP4 can help reduce file size, increase compatibility with various devices, and make sharing and streaming easier. Also, most video streaming sites like YouTube don’t accept MKV files.