B5 (3).mp4 -

: Right-click the file and select Properties (Windows) or Get Info (Mac) to see the "Date Created." This can help you remember what you were doing or where you were when the video was saved.

If you are using video editing software (like Adobe Premiere or CapCut), "b5" might be a shorthand for . The "(3)" would suggest this version of the export or clip was saved three times. How to Identify the Content b5 (3).mp4

: Could be a shortened hash or part of a temporary cache name. : Right-click the file and select Properties (Windows)

: This indicates it is the third copy of this specific file found in your downloads or gallery folder. 2. Digital Camera/Device Media b5 (3).mp4