FYI re U.S. Copyrights and Music Covers (emphasis mine)... Mechanical Licensing Laws Under the U.S. Copyright Act, the right to use copyrighted, non-dramatic musical works in the making of phonorecords for distribution to the public for private use is the exclusive right of the copyright owner. However, the Act provides that once a copyright owner has recorded and distributed such a work to the U.S. public or permitted another to do so, a compulsory mechanical license is available to anyone else who wants to record and distribute the work in the U.S. upon the payment of license fees at the statutory "compulsory" rate as set forth in Section 115 of the Act. —Source: Harry Fox Agency, Mechanical Licensing (LINK) About the source—the Harry Fox Agency—(LINK). Relevant excerpt: In 1927, the National Music Publisher's Association established HFA to act as an information source, clearinghouse and monitoring service for licensing musical copyrights. Since its founding, HFA has provided efficient and convenient services for publishers, licensees, and a broad spectrum of music users. Video requires a sync license, which is a different thing. Due to vagaries caused by U.S. Copyright law revisions over the years it's possible for a recording to have fallen into the public domain but the song itself to still be Copyrighted and still require a Mechanical License. And even if you've secured a Mechanical License, if you want to use your cover in a music video to put on YouTube you'll also need a Sync License.