B_055.mp4 → [Simple]

: The file name is common in folders of high-quality music videos or visual loops used by DJs in live sets.

: Several stock video libraries use "B_" prefixes for B-roll or sample clips (e.g., a "Focused lady remote student looking on computer screen"). b_055.mp4

: Many digital cameras and dashcams use sequential alphanumeric strings (like B_001, B_002) for stored recordings. : The file name is common in folders