1. A non-transitory computer readable medium storing an executable data structure for managing reproduction of text by a reproducing apparatus, the computer readable medium comprising: at least one text subtitle stream including a style segment and at least one presentation segment to which the style segment applies, the style segment defining a group of region styles for presenting at least one region of text within the presentation segment, the region of text being linked to a selected one of the group of region styles defined in the style segment by an identifier, the region of text including type information for identifying a type of each data within the corresponding region, the style segment and the at least one presentation segment being encapsulated into respective PES packets, the presentation segment further containing a continuous presentation flag indicating whether continuous presentation is required between the presentation segment and a previous presentation segment, presentation start time of the presentation segment is equal to presentation end time of the previous presentation segment when the continuous presentation is required between the presentation segment and the previous presentation segment.