Reproduction apparatus and a reproduction method for video objects received by digital broadcast

A reproduction apparatus that receives and reproduces a digital broadcast,

• wherein through the digital broadcast, moving picture data, a plurality of video objects, and mapping information are transmitted,
• each video object including a plurality of pieces of sub-picture data that are to be selectively reproduced, each piece of sub-picture data including still picture data and coordinates information that shows a display position of the still picture, the mapping information including sets of display mode information and sub-picture identifying information, for identifying a sub-picture that corresponds to each display mode for the moving picture data, the display mode information indicating a display mode in which the moving picture data is displayed in one of a plurality of aspect ratios, the sub-picture identifying information identifying a piece out of the pieces of sub-picture whose coordinates information coincides with the display mode indicated by the display mode information,
• and the reproduction apparatus comprises:
• a display setting register that records thereon display information that shows a display mode into which the moving picture data is processed, and
• a control unit operable 1) to determine sub-picture identifying information that coincides with the display information recorded on the display setting register by referring to the display mode information transmitted through the digital broadcast, and 2) to control reproduction so that sub-picture data identified by the determined sub-picture identifying information is used in the reproduction.