Abstract: In a presentation system a transmitter station transmits messages that provide information on demand. Such message is divided into parts. An earlier part of the message is presented more often than at least one later part of the messages. In particular, the presentation pattern is such that upon accessing the message's firts parts all other parts can be contiguously accessed according to a standard presentation velocity as from a time instant that is within a prespecified distance in time from the start of accessing said first part. In particular, the distance may be zero.