| 摘要 |
A method and apparatus for reducing user response time during simultaneous recording and playback is provided wherein a recordable disc medium device containing a writing buffer and a navigation pack buffer, in response to a pause-resume command, can temporarily store in the writing buffer a plurality of video object units to be recorded on the disc medium. In addition, the recordable disc medium device can selectively pause the transfer of additional video object units to the writing buffer to prevent the writing buffer from overflowing. Further, the recordable disc medium device can temporarily store these additional video object units in excess memory contained in the navigation pack buffer. In one arrangement, the size of the cells containing the video object units can be reduced thereby reducing the capacity requirements of the navigation pack buffer. Moreover, the recordable disc medium device can reduce the bit rate of the incoming bitstream containing the video object units. Alternatively, the navigation pack buffer and the writing buffer can be logically combined to form a single data storage medium. |
