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MPEG-4 Part 14
MIME type: video/mp4
MP4 is the most widely used video container format, capable of storing video, audio, subtitles, and metadata. It supports H.264 and H.265 video codecs and is the standard format for web video, streaming, and mobile devices.
MP4 is based on Apple's QuickTime container format and ISO Base Media File Format (ISO 14496-12). It organizes data into 'atoms' (or 'boxes') - ftyp (file type), moov (movie metadata), and mdat (media data). Video is typically encoded with H.264 (AVC) or H.265 (HEVC), audio with AAC or MP3. The container supports multiple tracks, chapters, and timed metadata.
Use BriskTool's video compressor to reduce MP4 file sizes. It can re-encode the video at a lower bitrate, reduce resolution, or adjust quality settings - all processing happens in your browser.