If this file is from a specific course or a dataset you are using (e.g., for machine learning or video editing), checking the or the README of the repository it came from is the best way to find the primary paper.
Could you provide about where you found this file or what it contains? This will help in identifying the exact research paper or technical documentation you need. An MP4 file first draft - Hacker News
: For understanding the underlying technology of such files, technical overviews like the Quick Dive into MP4 on DEV Community or the ISO Base Media File Format (ISOBMFF) analysis are considered "useful papers" for developers.