Method and apparatus for presenting video data in synchronization with text-based data

An apparatus for presenting video data in synchronization with text-based data, comprising:

• a first means for generating video presentation reference time synchronized with program clock reference included in a video data stream reproduced from a recording medium;
• a vide decoder for decoding the video data stream based on the video presentation reference time;
• a second means for generating text presentation reference time by adding an offset value to the video presentation reference time;
• a text decoder for decoding the text-based data based on the text presentation reference time;
• and
• a mixer for mixing the output of the video decoder with the output of the text decoder.