| 摘要 |
A recording and playback machine can record and play back information blocks simultaneously. The machine displays names of information blocks currently recorded and played back when a user makes a stop operation. The user then selects a name of an information block, for which the user wants to stop recording or playing back, from the displayed names. The machine stops the recording or playback operation for the information block selected by the user. The machine can stop only the recording or playing back operation that the user wants to stop during simultaneous recording and playback operations. The machine does not need a complicated operating system for this function.
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