method for communication between a central server and a computerized juke - box which operates in a conference mode , including : sending a header before any transaction , which includes the identity of the destination together , the identity of the emitter , and the size of the packets ; responding from the server in the form of a data packet , each packet sent by the server being encoded using the identification code of the juke - box software ; and receiving a data packet by the juke - box , which decodes the packet , simultaneously performs a check on the data received by the crc method and sends an acknowledgment of receipt to the server indicating the accuracy of the information received , to allow it to prepare and send another packet to the juke - box .