Audio recordings that include Parental Advisory labels in their original formats are generally released in censored versions that reduces or completely eliminates the questionable material. They are recognized as "clean" editions by the RIAA, and are left unlabeled in their revised formats. American retailers including Best Buy and f.y.e. distribute explicit and censored records; Target has sold both versions of a given record, although has occasionally offered only the explicit version depending on the product. Walmart and their affiliated properties are well known for only carrying censored versions of records; in one instance, the retailer refused to distribute Green Day's 2009 album "21st Century Breakdown" because they were not given the "clean" copies that they requested. Online music stores, including the iTunes Store, generally have the Parental Advisory logo embedded into digital files.