Video on demand system that presents users with a selection list of proposed videos for which server and network resources are available to immediately serve the selected video

An information offer system comprising:

• a plurality of data storage means, each storing real-time data, the order of which is managed in time series;
• communication means for transmitting said real-time data;
• reproduction means for receiving and reproducing said real-time data;
• communication-network-resources management control means for managing communication resources of said communication means and for establishing a communication path between said data storage means and said reproduction means;
• storage-resources management control means for managing the kind of said real-time data stored in said data storage means, and for managing the number of real-time data being able to be transmitted by said data storage means at the same time, to determine one of said plurality of data storage means, by which a required real-time data is to be transmitted;
• and
• service control means for accepting a demand for services from a user, and for directing said communication-network-resources management control means and said storage-resources management control means to reserve resources on the basis of the state of resources obtained by said communication-network-resources management control means and said storage-resources management control means, said service control means discriminating real-time data, which is able to be offered at a greater probability than a certain value immediately if selected, from real-time data which is impossible to be offered, to inform the user of real-time data to be selected.