11. The method of claim 10 , wherein the palette update flag is set to “1b” to indicate the use of the new palette information included in associated presentation segment, the region of text defined by the at least one region style remaining constant from an immediately previous presentation segment but for an associated palette information.
10. A method for reproducing a text subtitle stream recorded on a recording medium, the method comprising: reading a style segment included in the text subtitle stream, the style segment defining at least one region style and palette information; reading each one of a plurality of presentation segments included in the text subtitle stream, each presentation segment containing at least one region of text and the region of text defined by one of the at least one region style; reading a palette update flag included in each presentation segment, the palette update flag indicating whether to use the palette information defined in the style segment or to use new palette information defined in associated presentation segment; and presenting each presentation segment according to an indication of the palette update flag.