The Harry Fox Agency (HFA) is a provider of rights management and collector and distributor of mechanical license fees on behalf of music publishers in the United States.

[4] HFA provides the following services to its affiliated publishers: Songfile is an online mechanical licensing tool designed for the D.I.Y music industry market.

[6] Through Songfile, licenses can be obtained for physical works, permanent digital downloads (PDDs), ringtones, and interactive streaming distribution.

[7] Users pay a per-song processing fee and royalties for licenses, which are set at the current U.S. statutory rate.

Many arrangements of public domain works are under copyright, even if the original is not, and because the CMS tool is not perfect, some false disputes are created.