RECORD CARRIER, APPARATUS AND METHOD.

摘要

A RECORD CARRIER (1) OF THE INVENTION STORES AT LEAST VIDEO-RELATED USER DATA AND CONTROL DATA IN DIGITAL FORM. THE CONTROL DATA ENABLES PLAYBACK CONTROL OF THE USER DATA, WHICH CONTROL DATA COMPRISES AT LEAST PLAY CONTROL DATA WHICH DEFINES USER DATA ITEMS WHICH ARE PLAYABLE, AT LEAST SELECTION CONTROL DATA ENABLING THE USER TO SELECT AND CONTROL REPRODUCTION OF USER DATA AT LEAST VARIABLE CONTROL DATA FOR OPERATING ON USER AND SYSTEM VARIABLES. THE RECORD CARRIER (1) IS CHARACTERIZED IN THAT THE VARIABLE CONTROL DATA COMPRISES AT LEAST ONE INSTRUCTION FOR A CONDITIONAL ARITHMETICAL OPERATION.(FIG.1)