| 摘要 |
<p>A disc recording apparatus includes an encoder (37), a memory (35), a head device (3,4) and a controller (20). The encoder (37) subjects an input digital signal to data compression. The memory (35) accommodates temporarily the data output by the encoder. The head device (3,4) records onto the disc (1) the data read from the memory (35). The controller (20) controls the memory (35) and the head device (3,4) in operation. The controller (20) controls the operation of reading data from the memory in such a manner that the speed at which to read data from the memory is kept higher than the speed at which to write data to the memory after output from the encoder. When prerecording mode is established, the controller (20), before having the head device (3,4) start recording data onto the disc, always writes to the memory (35) the digital data that is input over a period of time starting from a given point in time, the period of time corresponding to the storage capacity of the memory. When having the head device (3,4) start recording data onto the disc in accordance with an actually input recording start instruction, the controller (20) reads data from the memory (35) starting from a point in time chronologically preceding the point in time at which the recording start instruction is input.</p> |
