| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical recording medium which can obtain a read signal without a distortion in waveform when information is reproduced. <P>SOLUTION: In the optical recording medium in which groove information tracks in which an information pit carrying information data is to be formed, and prepit tracks which are linked to the groove information tracks and in which a plurality of land prepits are previously formed, are alternately formed, a track width of at least a portion of each section in which the land prepit is present in the groove information track, is set to be narrower than a track width in a section in which the land prepit is not present, and a land prepit is linked to two groove information tracks adjacent to both its sides. <P>COPYRIGHT: (C)2007,JPO&INPIT |
