Content from the YouTube platform, when extracted and saved as a file, frequently utilizes the MP4 format. This format, short for Moving Picture Experts Group-4 Part 14, is a digital multimedia container format most commonly used to store video and audio, but can also be used to store other data such as subtitles and still images. For example, a user may employ third-party software to download a lecture from YouTube and save it as an MP4 file for offline viewing.
The widespread adoption of the MP4 format stems from its versatility and compatibility across various devices and operating systems. Its benefits include efficient compression, resulting in smaller file sizes without significant quality degradation, making it ideal for storage and distribution. Historically, the MP4 format emerged as an improvement over earlier video formats, offering enhanced features and better performance for streaming and downloading video content.