Live2002-01-401.mp4.mp4

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

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. Standard players might struggle if the codec is old

If you downloaded this from a forum or P2P site, it may be a clip of a live performance or broadcast. 2. How to Open the File Inspecting Metadata Many DVR and NVR systems (like