In technical specifications like HL7 Terminology , "47mp4" is used as a code representing the MP4 Video media type.
In a or software settings (like OBS or DaVinci Resolve)? As a file format error or download name ? In a technical document or database ? In technical specifications like HL7 Terminology , "47mp4"
If you provide the context, I can give you a more specific answer about what it means for your device or project. Weirton Daily Times Archives, Apr 23, 1959, p. 16 In technical specifications like HL7 Terminology