1. An information processing device, comprising: extracting means that extracts characteristic data from content; identifying means that identifies a category for the content on the basis of the characteristic data extracted by the extracting means; and executing means that executes set processing of the content, using a method according to the category identified by the identifying means, the characteristic data is used to form a characteristic vector, and the category is identified by arraying each element of the characteristic vector in a characteristic space that is divided by lines or curves and identifying the category based on a subset of the characteristic space to which the distribution of the arrayed elements belongs, the content including video content, and the characteristic vector including per-frame color histograms, wherein division of the characteristic space is based on the distribution in the characteristic space of frequencies of specified colors.