1. A method of embedding a source message as a watermark in a cover Work comprising the steps of: identifying a subset of a one-to-many code where each code vector in the subset corresponds to the source message applying an extraction process to a cover Work to obtain an extracted vector; searching the subset to identify the code vector that yields the highest detection value when compared against the extracted vector; creating a mixed vector that is perceptually close to the extracted vector with respect to the cover Work, and that obtains a predetermined robustness value when the mixed vector is compared against the identified code vector; and applying an inverse extraction process to the mixed vector and to the cover Work to create a watermarked Work.