File Extension File Type Popularity
MKV Matroska Video Format Very popular ( 5 / 5 )

MKV and MP4 compare

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MKV and MP4 are currently the most popular video formats. Both are containers that store encoded video, audio, and text data. MKV and MP4 use different encoding schemes and thus must be compared based on their capabilities.

MKV MP4
Supported streaming formats SRT subtitle files and FLAC audio tracks Simplified subtitle implementation
Supported number of streams Multiple, selectable audio and subtitles streams Single audio stream
File size Support for additional tracks and formats effects in larger file size Smaller than comparable MKV file
Software Lack of native support for some mobile operating systems (additional tools must be used), not many players support this format Supported on all operating systems including mobile, more suited for video streaming and hardware players