Live2002-01-401.mp4.mp4

Because the filename follows a standard timestamp or archival format (Live + Year + ID), 1. Check the Source

Many DVR and NVR systems (like those from Lorex or Swann ) use this naming convention. If you found this on a hard drive, it may be a recording from January 2002 or a specific channel marked "401." Live2002-01-401.mp4.mp4

If you need to know exactly what is in the file without watching it, you can use a tool like MediaInfo . It will tell you: When the video was actually created. Writing Library: What software was used to save the file. Because the filename follows a standard timestamp or

If you are having trouble playing the .mp4.mp4 (which looks like a double extension error), try these steps: It will tell you: When the video was actually created

Standard players might struggle if the codec is old. I recommend using VLC Media Player as it can play almost any video format regardless of naming errors. 3. Inspecting Metadata

Right-click the file and remove the extra .mp4 so the name ends simply in .mp4 .