Disc playing apparatus capable of both long time reproduction and high speed access

摘要

A disc playing apparatus which can access to a desired track at a high speed without losing an advantage of a large recording capacity of a non-CAV disc. A disc 1 on which a predetermined information signal is recorded is rotated at a constant rotational speed, the information signal is read out to thereby obtain a read signal, a reproduction clock signal CLK1 is extracted from the read signal, and the read signal is demodulated to thereby obtain demodulation data. A clock signal CLK2 of a predetermined frequency is generated, the demodulation data is stored in response to the reproduction clock signal CLK1, the stored demodulation data is sequentially read out in accordance with the storing order in response to the clock signal CLK2, and when it is detected that a residual data amount exceeds a predetermined amount, a read stop signal is generated, thereby stopping the reading operation of the information signal in response to the read stop signal.