1. System for replaying or creating audio and/or video data in a premises in which sales are made, the system comprising: at least one data source for audio and/or video data or at least one replay station for audio and/or video data; a control system, which is connected to the storage device or the replay station; at least one pay station connected with the control system; and, at least one storage unit, which is designed for storing at least one of the group comprising pay station sales, the audio and/or video data, programs, and applications that create the data, wherein the control system creates sets of correlation data from stored data, which have a temporal correlation between the played audio and/or video data or between the applications and programs that create these data, and the cash point sales, and wherein the control of the correlation data-sets is taken into account for the playing of the audio and/or video data or in selecting programs or applications.