| 摘要 |
<P>PROBLEM TO BE SOLVED: To enhance compatibility for an increase of density and a writing speed. <P>SOLUTION: A recording medium is provided with the recording medium, a reception means, a reading means, and a writing means. The recording medium includes a writing area composed of a plurality of tracks while including a plurality of track groups which are writing units, and an escape area for temporarily storing data. An input means accepts a writing instruction of the data. The reading means reads the data stored in the escape area and the data of a first track group among the plurality of track groups. The writing means writes the data accepted by the writing instruction into the escape area, and data merging the data read in from the escape area and the data read in from the first track group are written into each track of a second track group among the plurality of track groups by using a single recording system for partially duplicating adjacent tracks each other. <P>COPYRIGHT: (C)2012,JPO&INPIT |
