Abstract: A disk reproducing apparatus enables selection and reproduction of the desired programs recorded on a disk, with reduced memory capacity. When a desired program is selected using the operating panel, a system controller moves an optical pickup to the TOC area of the read-in region of a read-only mini-disk, causes the optical pickup, RF amplifier and digital signal processing circuit to read the start address of the desired program from the TOC area, thereafter again moves the optical pickup while observing the address data in the subdata input from the digital signal processing circuit, then searches the heading position of the desired program on the disk and starts reproduction of the desired program, upon completion of the searching operation.

Abstract: A focus servo control device is provided with a focus search signal generating portion for generating a focus search signal whose first half cycle is short and whose second half cycle is long, a level detecting portion for detecting the level of a focus error signal when an object lens first passes near the focus point in response to the focus search signal, a gain adjusting portion for adjusting the focus servo gain based on the detected focus signal level, and a signal switch circuit for outputting a focus error signal instead of the focus search signal when the object lens reaches the focus point or the adjacency of the focus point for a second time in response to the focus search signal. The object lens is moved to a position where the focus servo control can be performed in response to the focus search signal, and then focused on the surface of a disc in response to the focus error signal in accordance with the distance between the object lens and the disc surface.