A:Answer GoPro cameras use a safety technique called chaptering, which breaks longer video recordings into smaller files that can be joined together in editing to make a single shot. That way, if there is an issue with the recording, you wouldn't lose all of the footage you shot. With the HERO9 Black, chapters are set up approximately every 4GB of data. Depending on the settings you're using, that means new chapters will be made every 5 to 8 minutes. The total length of a video depends on the size of your SD card and the settings you choose. For example, with a 128GB card you should be able to record for nearly four hours or more in most settings.
