1. A computer readable recording medium storing an information attachment program, for attaching meta-information for management, to multimedia data executed by a computer, the program comprising: an acquisition step of acquiring a search word of a text search done at a search site; a monitoring step of monitoring whether or not a search frequency of the search word acquired in the acquisition step satisfies a predetermined criterion; a determination step of determining whether or not at least a portion of the search word matches a character recognition processing result of the multimedia data when the search frequency of the search word is determined to satisfy the predetermined criterion in the monitoring step; and a registration step of registering the search word as meta-information of the multimedia data when, as a determination result of the determination step, the search word matches the character recognition processing result.