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What is MP4?
MP4 (MPEG-4 Part 14) is a digital multimedia container format most commonly used to store video and audio, but it can also be used to store other data such as subtitles and still images. It is a standard specified as a part of MPEG-4.
History
MP4 was introduced in 2001 as a successor to the MPEG-4 Part 12 format. It was developed by the Moving Picture Experts Group (MPEG) and is based on the QuickTime File Format (QTFF) used by Apple's QuickTime framework.
How it works
MP4 files contain various types of data streams, including video, audio, and metadata. The format uses a hierarchical structure of boxes (also called atoms) to organize the data. Each box contains a specific type of information, such as video frames, audio samples, or metadata about the content.
How to open MP4 files
MP4 files can be opened with most modern media players and devices. Here are some common ways to open MP4 files:
- Windows Media Player
- VLC Media Player
- QuickTime Player (Mac)
- iTunes
- Windows 10 Movies & TV app
- Most web browsers (for streaming)
- Most smartphones and tablets
Tips for working with MP4 files
Here are some useful tips when working with MP4 files:
- MP4 files are widely supported across different platforms and devices
- They offer good compression while maintaining quality
- MP4 files can contain multiple audio tracks and subtitles
- The format supports streaming and progressive download
- MP4 files can be easily shared and uploaded to various platforms
Useful links
For more information about MP4 files, you can visit these resources:
- MPEG-4 Part 14 Specification
- ISO/IEC 14496-14:2003 Standard
- MP4 File Format Documentation
What is MKV?
MKV (Matroska Video) is an open, free container format that can hold an unlimited number of video, audio, picture, or subtitle tracks in a single file. It is designed to be a universal format for storing common multimedia content, like movies or TV shows.
History
MKV was developed by the Matroska team, starting in 2002. It was created as an open alternative to proprietary container formats, with the goal of providing a flexible, extensible format for multimedia content.
How it works
MKV files use a flexible structure that can contain multiple video and audio tracks, along with subtitles, chapters, and metadata. The format supports a wide range of codecs, making it versatile for various types of media content.
How to open MKV files
MKV files can be opened with various media players and devices. Here are some common ways to open MKV files:
- VLC Media Player
- Media Player Classic
- PotPlayer
- Most modern web browsers
- Many media players on mobile devices
- Kodi
- Plex
Tips for working with MKV files
Here are some useful tips when working with MKV files:
- MKV files can contain multiple audio and subtitle tracks
- They support a wide range of video and audio codecs
- The format is open and free to use
- MKV files are ideal for high-quality video storage
- They can be easily converted to other formats
Useful links
For more information about MKV files, you can visit these resources:
- Matroska Project Documentation
- MKV File Format Specification
- Matroska Developer Documentation
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