A data stream is transmitted to groups of individuals making separate requests for the data stream. The groups may be arranged by placing a maximum number of requesters in a group or by grouping the requesters making requests within a discrete period of time. The individual requester may be shifted from group to group or from a data store to another data store location to change the location in the data stream from which the data is sent to an individual requester or the time of transmission of the data sent from the data store.