Andy Montañez's lucrative, extensive catalog was reissued in bits and pieces rather than with close attention to production values. Polygram's Serie Millenium 21 series is no exception, since it lacks production notes and sidemen information. However, this great material is irresistible -- the endlessly issued material is still a joy to listen to. It features good sound, too. Still, the Oro Salsero volumes are the best of the masterful singer's compilations. ~ José A. Estévez, Jr.