Provide more context so I can help you find the exact content. changing meta data for mp4 files - Microsoft Community
Since the file has an .mp4 extension, it uses the container format. This means:
Many digital video recorders (DVRs) and CCTV systems use "PM" (often short for "Picture" or "Post-Meridiem") followed by a sequence number. would typically be the 20th clip in a recorded sequence. 2. Project or Media Management PM020.mp4
: In professional video editing, files are often labeled by project codes. "PM" might stand for Project Manager , Product Marketing , or a specific internal project code (e.g., "Project Midnight").
: For technical details (like the software used to create it), you can use MediaInfo or ExifTool to read the embedded metadata. Provide more context so I can help you
If you have the file and are unsure what is in it, you can safely inspect it using these methods:
