If you’ve encountered a file with this name, safety and organization are key:

The prefix "IMBD" is strikingly similar to the world-famous IMDb (Internet Movie Database) , which serves as the ultimate repository for film and television data. While IMDb typically uses "tt" followed by numbers for titles, many third-party media managers or private archiving systems use their own "IMBD" shorthand to link local files to online metadata.

Regardless of the name, the extension tells us exactly what the file is designed to do. As an MPEG-4 Part 14 container, it is one of the most versatile formats available today.