METHOD OF SHIFTING ROTATIONAL SPEED OF DISC AND DISC DRIVE USING THE SAME

摘要

A method is provided for shifting a rotational speed of a disc. The method includes steps of: detecting a state of a button to determine whether the button is pressed down; counting activating duration if the button is pressed down; determining whether the activating duration is up to a predetermined time; and switching the rotational speed of the disc from a first speed level to a second speed level, if the activating duration is up to a predetermined time. A related disc drive using the method to shift the rotational speed of the disc is also provided.