发明名称 |
Recording/playback method and apparatus, presentation medium and recording medium |
摘要 |
<p>With append_only_flag reset to 0, data is recorded over existing data on a disc in accordance with the value of volume_write_protect_level. With append_only_flag set to 1, on the other hand, data can not be recorded over existing data on the disc but can be appended to already recorded data in a range defined by the value of volume_write_protect_level. As a result, it is possible to prevent new data from being written over already recorded data by mistake and to utilize the recording area of the disc efficiently. <IMAGE></p> |
申请公布号 |
EP0952580(A2) |
申请公布日期 |
1999.10.27 |
申请号 |
EP19990303110 |
申请日期 |
1999.04.22 |
申请人 |
SONY CORPORATION |
发明人 |
FUJINAMI, YASUSHI;HAMADA, TOSHIYA |
分类号 |
G11B20/00;G11B20/10;G11B27/034;G11B27/036;G11B27/32;G11B27/34;G11B19/00;G11B19/04;(IPC1-7):G11B27/034 |
主分类号 |
G11B20/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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