| 摘要 |
PURPOSE: A method for guaranteeing predetermined reading performance of a file system for a continuous medium is provided to always read a predetermined amount of data while simultaneously reading the data from disks, thereby supplying a predetermined quality of image service to a subscriber. CONSTITUTION: In order to always read a predetermined amount of data whenever simultaneously reading the data from plural disks, the data are sequentially stored in the first direction toward a track having a smaller radius of curvature from a track having a bigger radius of curvature with regards to the half of the disks. The rest half of the data are sequentially stored in the second direction opposite to the first direction.
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