Digital data reproducing apparatus and method.

摘要

A digital data reproducing apparatus and method which allows picture reproduction for a long period of time without deterioration in picture quality is described. Data are reproduced from an optical disk (16) by a pickup (41) and are transferred to and stored into a ring buffer memory (45). Data read out from the ring buffer memory (45) are transferred to and stored into a video code buffer (21) of a decoder section (31). The data stored in the video code buffer (21) are decoded in the decoder section (31) and displayed on a display (29). A track jump judging circuit (47) produces, when the amount of data stored in the ring buffer memory (45) reaches a predetermined value set in advance, a track jumping instruction to cause the pickup (41) to perform track jumping back by one track distance.