: Supplemental videos labeled with numbers like 15 are common in studies regarding swine heart models or neutrophil responses .

Many scientific journals use "video 15" as a supplemental file to illustrate research findings:

: A file named Oppia.Bug.Report.Video.15.mp4 was submitted to GitHub to document a bug where images disappear after opening concept cards in the Oppia educational platform.

In legal and law enforcement contexts, files named "video-15.mp4" are frequently cited as evidence:

: In reports on heart contractility analysis using PIV-MyoMonitor , "video-15.mp4" may be a sample input for testing frame rates.