A method of recording information in a phase-change recording medium, including the steps of conducting a test recording, using a laser beam including a plurality of pulse trains, each pulse train including alternately (a) a comb-shaped pulse train portion and (b) a flat pulse-free portion, or using a laser beam including a comb-shaped pulse train pulse train portion without including the flat portion, with a duty ratio of the comb-shaped pulse train portion being changed, thereby recording a plurality of signals or laser-beam applied portions in the recording medium, reproducing the plurality of recorded signals, or measuring the light intensities reflected by the laser-beam applied portions and converting the measured light intensities to voltages and obtaining the relationship between the amplitudes of the signals reproduced from the recorded signals or the voltages and the duty ratios corresponding thereto in order to specify a pulse strategy for recording information in the phase-change recording medium, and a phase-change recording medium produced by this method of recording are proposed.