: Right-click the file and select Properties > Details to view basic metadata.

The double extension ( .mp4.mp4 ) often occurs when a user or automated system re-saves a file without removing the existing extension. Analyzing the File

: Video files themselves can occasionally exploit vulnerabilities in media players, so it is always safer to run a scan using tools like Windows Security or Malwarebytes before opening. VirusTotal - Home

: To see the technical details (such as frame rate, bit rate, or creation date) without fully playing the file, you can use online tools like Metadata2Go or professional tools like ExifTool . Built-in Verification :