If you have found this file on a hard drive or SD card and want to see what it is:
: Many digital video recorders (DVRs) save clips using a single letter and a sequence number (e.g., G for "Gate" or "Group") to organize surveillance logs. How to Review the Content Yourself g_147.mp4
: Check the "Camera Model" field in the file's extended properties to identify which device captured the footage. Default File Name - GoPro Support If you have found this file on a
: Right-click the file and select Properties (Windows) or Get Info (Mac). Look for the "Date Created" or "Origin" to see when and where it was filmed. Look for the "Date Created" or "Origin" to
: GoPro cameras use specific naming conventions like GHxxxxxx.mp4 (H.264) or GXxxxxxx.mp4 (HEVC). A file named g_147.mp4 suggests a custom or legacy camera setting where "g" stands for the device and "147" is the sequential clip number.