9. A method for decoding a text subtitle stream recorded on a recording medium, the method comprising: loading the text subtitle stream into a subtitle loading buffer, the text subtitle stream including a style segment defining at least one region style and at least one presentation segment, each of the at least one presentation segment containing at least one region of text and being linked to one of the at least one region style, the style segment further defining at least one set of user control style for each of the at least one region style, each of the at least one set of user control style including at least one user control style being selectable for changing at least one region presentation property specified by a corresponding region style; and decoding each of the at least one presentation segment using the linked at least one region style and one of the at least one set of user control style, wherein the style segment includes a player style flag indicating whether a player is permitted to use its own player style in addition to the at least one region style defined in the style segment of the text subtitle stream in the recording medium, wherein each of the at least one set of user control style specifies a direction and a delta of a change in the at least one of region presentation properties specified by the corresponding region style.
9. A method for decoding a text subtitle stream recorded on a recording medium, the method comprising: loading the text subtitle stream into a subtitle loading buffer, the text subtitle stream including a style segment defining at least one region style and at least one presentation segment, each of the at least one presentation segment containing at least one region of text and being linked to one of the at least one region style, the style segment further defining at least one set of user control style for each of the at least one region style, each of the at least one set of user control style including at least one user control style being selectable for changing at least one region presentation property specified by a corresponding region style; and decoding each of the at least one presentation segment using the linked at least one region style and one of the at least one set of user control style, wherein the style segment includes a player style flag indicating whether a player is permitted to use its own player style in addition to the at least one region style defined in the style segment of the text subtitle stream in the recording medium, wherein each of the at least one set of user control style specifies a direction and a delta of a change in the at least one of region presentation properties specified by the corresponding region style. 11. The method of claim 9 , wherein each of the at least one user control style specifies a direction and a delta of a change in at least one of a region horizontal position, a region vertical position, a text horizontal position, a text vertical position, a line space, and a font size, which are specified in the corresponding region style.