Could you provide about where you encountered this file or its origin to help narrow down its specific contents? MP4 files explained: How to open and use - Adobe
: The .mp4 extension identifies it as a MPEG-4 Part 14 digital multimedia container format. This format is universally used for streaming and downloading video and audio. TCTDoubleBJ.mp4
: Right-click the file, select Properties , and go to the Details tab to see dimensions, bitrate, and duration. Mac : Right-click the file and select Get Info . Could you provide about where you encountered this