; (bb) to the extent acquired by the digital music provider in the metadata in connection with its use of sound recordings of musical works to engage in covered activities, including pursuant to subparagraph (B), provide information concerning authorship and ownership of the applicable rights in the musical work embodied in the sound recording (including each songwriter, publisher name, and respective ownership share) and the international standard musical work code; and (cc) provide the number of digital phonorecord deliveries of the sound recording, including limited downloads and interactive streams; (II) identify and provide contact information for all musical work copyright owners for works embodied in sound recordings as to which a voluntary license, rather than the blanket license, is in effect with respect to the uses being reported; and (III) provide such other information as the Register of Copyrights shall require by regulation. (iii) Format and maintenance of reports Reports of usage provided by digital music providers to the mechanical licensing collective shall be in a machine-readable format that is compatible with the information technology systems of the mechanical licensing collective and meets the requirements of regulations adopted by the Register of Copyrights. The Register shall also adopt regulations setting forth requirements under which records of use shall be maintained and made available to the mechanical licensing collective by digital music providers engaged in covered activities under a blanket license. (iv) Adoption of regulations The Register shall adopt regulations— (I) setting forth requirements under which records of use shall be maintained and made available to the mechanical licensing collective by digital music providers engaged in covered activities under a blanket license