1. A multimedia file reproducing apparatus comprising: an emotional reaction index calculation unit to calculate an emotional reaction index based on a physical reaction signal of a user; a like/dislike checking unit to check whether the user likes or dislikes a corresponding audio file based on the calculated emotional reaction index; a list generation unit to generate a list of audio files that the user likes based on an average of emotional reaction indices for each audio file and the user's preference for each audio file; and a reproduction management unit to control the reproduction of the corresponding audio file based on whether the user likes or dislikes the corresponding audio file and to reproduce the audio files in the generated list.