A term coined and used by the RIAA when discussing items confiscated during one of their trademark "Piracy Raids" or when discussing music files on the personal computer of the defendant in one of their some 15,000 lawsuits against the general public. Often used with quotation marks.
1. 700+ CDs and DVDs of "questionable legality" were confiscated during the raid.
2. Her computer contained hundreds of MP3s of "questionable legality."