| 摘要 |
PROBLEM TO BE SOLVED: To attain recording matching the characteristics of image data that are hierarchically coded. SOLUTION: In the case of recording image that are hierarchically coded, a recording medium access function section 264 writes data to a recording medium 24 according to procedures 1) wire of directory entry, 2) data write by one cluster, 3) update of FAT and 4) repetition the procedures 2), 3) above by taking a feature of hierarchical coding, where an original picture can be recovered only with data of low frequency components without the need for all data arranged for the recording, into account. Thus, data available for files are being increased while being confirmed for each cluster. Thus, even when data write is interrupted halfway due to a worn battery 35 or the like, it is possible to leave data having so far been written as files, and although the image quality may be deteriorated, the original processing can be recovered only with the data left as the files. |
