A method of playing a bingo-styleword game in a game show or computer game format is provided. The cutter 224 cuts the strip into discrete labels, which are fed to a tag application station 226. A main player reads the bind key from the DVD-ROM, acquires sub-content that relates to the main content stored on the DVD-ROM, generates encrypted sub-content by encrypting the acquired sub-content based on the read bind key, and writes the generated encrypted content to an SD memory card. Also, an ohmic contact pattern is formed on the upper semiconductor pattern, and the ohmic contact pattern is formed by the same patterning process as the upper semiconductor pattern.