escale field in the Media Header Box is
        typically set to 48000. It is recommended that the timescale field in the Movie Header Box be set to the same
        value of the timescale field in the Media Header Box in order to avoid the rounding problem when specifying
        duration of edit if the timescales in all of the Media Header Boxes are set to the same value.

        For example, to indicate the actual duration of an Opus bitstream in a track with the timescale fields of both
        the Mov