In the game, instead of filling up an entire board as is done in the known Othello\xae game, a certain amount of moves are made by the game, such as two moves, while the player makes a same amount of moves. A transport belt is provided with an array of perforations such that vacuum flow is restricted. A check box is selected in order to set so that AV contents recorded as compression data of the MPEG 2 system on the HDD are copied onto the external recording medium after they are converted into compression data of the MPEG 1 system which has compatibility with a video CD. The flow path may include multiple vortex chambers, and the device may include multiple flow paths.