Storage medium for storing text-based subtitle data including style information, and reproducing apparatus and method for reproducing text-based subtitle data including style information

A method of reproducing multimedia image data and text-based subtitle data recorded on a computer readable storage medium for displaying subtitles on an image based on the multimedia image data, the method comprising:

• reading the text-based subtitle data, the text-based subtitle data comprising dialog information and style set, the dialog information comprising text information, reference style information, and partial style information, the style set comprising a plurality of style information;
• applying one style information of the plurality of style information to the text information, the reference style information indicating the one style information to be applied to the text information among the plurality of style information;
• applying the partial style information to a portion of the text information after the applying of the one style information to the text information;
• forming a bitmap image in a graphics plane, the bitmap image corresponding to the text information to which the one style information and the partial style information are applied;
• and
• outputting the formed bitmap image on a screen by applying a color with reference to a color look-up table (CLUT).