A metal line 731 is formed in a linear area S of an insulative substrate 720, and moreover a metal line 732 is formed generally parallel to the metal line 731 with a specified distance thereto. The AVClip includes a video stream multiplexed with a plurality of elementary streams. The episode server wirelessly connects to the portable player for example to get the episode information stored therein and organizes the retrieved episode information into a database. An upper surface of the alloy substrate is formed with a large number of minute and pyramidal unevenness having high light scattering property. The shield is held in place by the gripping means slightly above and substantially parallel to the basketball goal solely by the gripping means, with the upper surface of the shield is positioned above the top surface of the basketball goal and outside the front edge of the basketball goal.