REPRODUCING APPARATUS, REPRODUCING METHOD, REPRODUCING PROGRAM, RECORDING MEDIUM, AND DATA STRUCTURE.

摘要

The state transition of a player operation is clearly defined to facilitate the productionof interactive contents. Consider, as a player model for reproducing a disc,a model comprising a player (300) for reproducing a stream; a platform (301) servingas an interface between the player (300) and hardware; and a script layer (302)for achieving a scenario intended by a content producer. The states of the player(300) are defined as being four states resulting from combining two states asto whether or not a play list is being reproduced with two states as to whether ornot a command (311) is accepted. A state transition between the four states ofthe player (300) occurs in response to a method (313) from the script layer (302)but does not occur in response to the player (300) itself or the command (311).Since the number of the states of the player (300) is small and the conditions ofthe state transition are clear, it is easy to produce interactive contents andimplement them into devices.