An information recording device and a related method are disclosed. The information recording device and the related method are capable of adjusting a phase error between a first synchronization signal and a second synchronization signal, where the first synchronization signal is synchronous to a location on a recording medium, the second synchronization signal is synchronous to a data pattern to be written onto the recording medium, and the data pattern comprise a sync pattern and a non-sync pattern. The information recording device includes a phase detector for detecting the phase error between the first synchronization signal and the second synchronization signal; and a controller, electrically connected to the phase detector, for adjusting the length of the non-sync pattern of the data pattern according to the phase error, thereby making the second synchronization signal substantially synchronized with the first synchronization signal.