El Costeño - Cuarteto Las Cuerdas De Marin, N.L.

Matthew: 

The acronym D.A.R. stands for the Spanish term "Derechos de Autor Reservados."  It is a copyright designation that protects the royalty rights of the composer. It is also sometimes listed as D.R., for Derechos Reservados. Those edesignations are sometimes used when the composer or publisher of the song are not immediatley known, but rights are rserved while a publisher is located. If a song is no longer under copyright protection, because the copyright has expired, labels often use the designation P.D., which stands for Public Domain. 

Thanks for your question, and your interest in our collection. 

Agustín Gurza, Editor, The Frontera Collection.