Apparatus for recording data on optical recording medium

It provided an apparatus for recording data on an optical recording medium. Means in said recording medium is recorded on the optical data, comprising a recording waveform generator for generating a recording waveform having a pattern comprising a plurality of pulses of elimination; and a pickup unit for recording waveform generated according to the optical recording medium is irradiated with light to form a mark or space. Thus, it is possible to prevent the deformation of the shape of the mark, shape of the mark can be improved and as a result, can improve the recording / reproducing characteristics.