Information such as subtitles, chapter markers, and still images. 3. Core Compression (Codecs)

To keep 4K files manageable, the MP4 container uses advanced compression algorithms (codecs). Explaining Digital Video: Formats, Codecs & Containers

The "38" in 3816 often serves as shorthand for the pixel resolution, widely known as 4K UHD.

This resolution is the standard for high-end streaming, modern gaming, and professional cinematography. 2. The MP4 Container Format

Below is a feature breakdown of the technology and standards that define files of this nature. 1. Resolution and Clarity

It provides four times the detail of standard 1080p HD.

MP4 (MPEG-4 Part 14) is the world's most popular digital multimedia container. It is a "wrapper" that holds several types of data together in one file: The visual data compressed by a codec.