Discomovil was one of our greatest choices we made regarding our wedding.  They played whatever we asked them to - we had them stop music if we asked, they played in the order we asked... they let my little 9 year-old-nephew put in his request and they fulfilled it.  They had their work cut out for them because our wedding was a mix of people from Mexico and the US... two languages, two cultures (with 2 traditions).  They were able to keep everyone going and engaged both groups.  When a Mexican tradition came up - they got the people from the U.S. involved and following right along.  We have no complaints and would highly recommend them!