Vid-20210118-wa0076.mp4 -

: The file extension, representing the MPEG-4 video format . Technical Context

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Based on the standard format, the name encodes the following information: : Indicates the file type is a Video . : The file extension, representing the MPEG-4 video format

: If a user cannot open this file, common causes include insufficient SD card space or a corrupted download . : The file extension

: A unique four-digit serial number assigned by the app to differentiate it from other videos received on the same day.