Information embedding apparatus, and a detection device

Providing information embedding apparatus capable of preventing playback stop illegal intended without shot content. The content, an information embedding apparatus that embeds a plurality of watermark information along the reproduction time axis of the content, an acquisition unit for acquiring content to be reproduced along a time axis, the plurality of watermarks information, and watermark information generating means for generating in a manner that varies with regularity value held in accordance with a sequential order on the playback time axis of the watermark information, among the plurality of watermark information, two or more watermarks each information, and a embedding means for embedding the content while maintaining the arrangement order on the playback time axis.