An optical recording media includes a recording film, and a stacked film of at least two dielectric films A and B formed on at least one surface of the recording film. Initially, each user of the web site stores customization data, such as the user’s zip code, in a cookies file together with a globally unique identifier which identifies the user. It is determined whether a battery has satisfied a preset condition when the battery module is operated from a usage state to an idling state. The positioning mechanism includes an eccentric bearing and a rotation restrictor. 045, and has a crystalline structure.