An apparatus for reproducing record information from an information record medium having a plurality of data units including navigation information and record information corresponding to at least one of video information, audio information, and sub-picture information, wherein the navigation information includes highlight information for highlighting a button, wherein the highlight information includes a highlight duration factor indicating a duration during which the highlighting of the button is made effective, and wherein the highlight duration factor is longer in duration than a reproduction duration of one or more of the plurality of data units, the apparatus comprising:
- a pickup for reading the record information from the information record medium to obtain a detection signal;
- a demodulation circuit for demodulating the detection signal to obtain a demodulation signal;
- and
- a controller for controlling reproduction of the record information based on the navigation data and the highlight information.