| 摘要 |
In an optical disk storing digital image information in the form of a succession of blocks, each comprising a plurality of frames having I-, P- and B-pictures, an address format is preformatted in front of the block of image information of the plurality of frames. The data arrangement within each image information blocks is such that I- and P-pictures are collectively disposed. The position of the I-pictures within each block is shifted from one block to another. The I-picture data may be divided into fraction according to the position on the screen, the DCT frequency, or layering, and the fractional I-picture data may be arranged in the image information blocks, and a header or parity signal is recorded in front of each fractional I-picture data.
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