| 摘要 |
<p>The present invention relates to a record medium such as a magneto-optical disk (1), an optical disk and so on from which recorded data is read out by an optical means. This record medium is comprised of a recording track formed beforehand on the optical record medium, a recordable area (1a) formed on the record track and in which data is recorded along a track direction, and an area (1b) used exclusively for reproduction in which data is recorded beforehand by displacing a track in the track width direction in response to data, wherein a track width of the data recordable area is made wider than that of the area used exclusively for reproduction. Thus, data can be recorded in and reproduced from this record medium satisfactorily. <IMAGE></p> |
