a method and related circuit for synchronizing a writing clock with a wobble clock of a compact disk drive . the cd drive is capable of rotating a cd that has a data track for recording data and a wobble track . the cd drive is capable of generating the wobble clock according to movement of the wobble track while the cd is rotating . also the cd drive is capable of writing data on the data track according to the writing clock . the method includes adjusting the frequency of the writing clock so as to synchronize the writing clock and the wobble clock .