: Many academic publishers use numeric identifiers for supplementary video files. For example, similar ID strings appear in PMC (PubMed Central) as metadata for supplementary MP4 movies attached to medical or biological research papers.
ruben1PvP commented. ruben1PvP. on Dec 21, 2025 · edited by ruben1PvP. a. is not necessary to specify because that's something yt- 14851(1)mp4
: The (1) in the filename often indicates a duplicate download or a second version of a file named 14851.mp4 saved in the same directory. This is common when using download managers or video tools like yt-dlp . NASA SVS | GEMx Animations : Many academic publishers use numeric identifiers for
Origamic metal-organic framework toward mechanical metamaterial ruben1PvP
Related * ID: 14851. GEMx Illustrations. * ID: 14728. B-Roll. Geological Earth Mapping Experiment (GEMx) B-roll. NASA Scientific Visualization Studio [youtube] howto combine format parameters? #15381 - GitHub
Depending on the context, it typically relates to one of the following: