; and (ee) any additional information reported to the mechanical licensing collective that may assist in identifying the work; and (II) such other information relating to the identity and ownership of musical works (and shares of such works) as the Register of Copyrights may prescribe by regulation. (iv) Sound recording information Each copyright owner of musical works shall engage in commercially reasonable efforts to deliver to the mechanical licensing collective for use in the musical works database, to the extent such information is not then available in the database, information regarding the names of the sound recordings in which that copyright owner’s musical works (or shares thereof) are embodied, to the extent practicable. (v) Accessibility of database The musical work database shall be accessible to the public in a searchable, online format free of charge. The mechanical licensing collective shall also make such database available free of charge in a bulk, machine-readable format, via a widely available software application, to— (I) digital music providers operating under valid notices of license; (II) significant nonblanket licensees