; (II) identify and provide contact information for all copyright owners of musical works 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. (B) Procurement of sound recording information In addition to obtaining sound recording names and featured artists, a digital music provider shall engage in good-faith, commercially reasonable efforts to obtain from copyright owners of sound recordings made available through the service of such digital music provider— (i) producers, international standard recording codes, and other information commonly used in the industry to identify sound recordings and match them to the musical works they embody