A golf ball with aerodynamic coefficient magnitude and aerodynamic force angle, resulting in improved flight performance, such as increased carry and flight consistency regardless of ball orientation. The first and second sustain pulses respectively have a high level voltage and a low level voltage, and a first period during which the first sustain pulse is changed from the low level voltage to the high level voltage is longer than a second period during which the second sustain pulse is changed from the low level voltage to the high level voltage. The apparatus also includes an external memory having a set of storage locations for data. In addition, since the target quantity of codes corresponding to the coding difficulty of the video data is calculated, optimum coding corresponding to the pattern of the video data can be realized. Then, an outer solder electrode is formed so as to cover this protrusion.