Nielsen's Gracenote, a metadata and identification services company owned by media measurement giant Nielsen, has sued OpenAI for copyright infringement. The lawsuit accuses OpenAI of copying and using Gracenotes' metadata without authorization or compensation, and of copying the relational framework it uses to connect its metadata. This lawsuit could set a new precedent for how data providers protect their intellectual property. Gracensote's entire Programs Database, which includes its metadata and relational map its editors use to connect that data, is registered with the U.S. Copyright Office. The company is seeking statutory damages, in addition to actual damages.