This box stores the actual encoded video and audio content. 2. Forensic Metadata Analysis
An MP4 file like "nynaF.mp4" is built on the ISO Base Media File Format, which uses a hierarchical system of "boxes" (or atoms): nynaF.mp4
Researchers use metadata patterns to determine what type of camera or phone originally captured the footage. This box stores the actual encoded video and audio content
The first box, identifying the file as an MP4 and listing compatible versions. nynaF.mp4
Editing tools cause structural changes in the MP4 tree that are difficult to hide, allowing investigators to see if a video was altered.
Forensic tools like ffprobe can extract "hidden" data from the moov box that reveals the file's history:
