The applications for this technology go far beyond simple file identification:

Rights managers use fingerprinting to find unauthorized copies of movies or music on user-generated content sites.

Much like a human fingerprint uniquely identifies a person, a digital fingerprint (or "hash") maps a large data item, like an MP4 file, to a much shorter bit string.

Below is a blog post designed to introduce your audience to this powerful intersection of video data and biometric-style identification. FingryMP4: Why Your Videos Need a Digital Fingerprint