: It is frequently used as a default name in "File Manager" directories on USB drives for generic song or meeting recordings (e.g., B_001.mp4 , B_002.mp4 ).
: A video file named RWT-B_001.mp4 is used by Tekserve (欣岩企業) as a visual demonstration for industrial equipment, specifically a rework arm support system. b_001.mp4
: In professional and corporate settings, this specific naming convention—often as part of a longer string like 3100016_ET_SifmaOnSite_Video_FY25_Larry-B_001.mp4 —is used for industry video content, such as a Broadridge VP discussing data harmonization at SIFMA Ops . : It is frequently used as a default