Dragon.mp4 -

: Developers use it as a dummy file in search or storage troubleshooting, such as testing if a files app correctly indexes .mp4 extensions. 2. Digital Archives & Media

: A segment from the 1982 ReadIt telecourse with John Robbins. Dragon.mp4

: In AI development guides (like those for Wan2.1 or Sora), "dragon.mp4" is frequently used as a sample output filename for "image-to-video" tasks, such as animating a still image of a dragon. : Developers use it as a dummy file