: Use a tool to view the "EXIF" data. This might tell you the date, time, and even the GPS coordinates of where the video was filmed, which is far more useful than the name "8121". The Bottom Line

Have you ever found yourself staring at a search bar, typing in a cryptic string of letters and numbers like ? You’re not alone. Thousands of people perform these "blind" searches every day, hoping to find a lost memory, a viral video, or perhaps the source of a mysterious file found on an old hard drive.

If you are trying to find the source of a video and only have a filename, don't lose hope. Instead of a text search, try these methods: