Pm020.mp4 -

: Right-click the file and select Properties > Details (Windows) or Get Info (macOS) to see the date it was created, which may provide a clue to its origin.

: Digital Asset Management (DAM) systems often assign alphanumeric codes like PM020 to specific stock footage or commercial assets. 3. Technical File Characteristics PM020.mp4

: It almost certainly contains AAC (Advanced Audio Coding) audio. : Right-click the file and select Properties >

Since the file has an .mp4 extension, it uses the container format. This means: PM020.mp4