System for recording data in an optical disc

A system for recording data in an optical disc having frames having different numbers, the system recording data in each of the frames while writing synchronization information in each frame, comprising:

• an even/odd frame judgment unit configured to judge whether the number of a frame having a land pre-pit is an even number or an odd number, on the basis of a signal obtained by detecting the land pre-pit;
• a synchronization information output unit configured to output plural pieces of synchronization information corresponding to different synchronization patterns;
• an address value calculation unit configured to calculate first address information of a frame from which existing of a land pre-pit is detected, on the basis of a signal obtained by detecting the land pre-pit;
• a storage unit configured to obtain, as second address information, the first address information and a frame number of a frame having a land pre-pit changed from an even frame to an odd frame or from an odd frame to an even frame, on the basis of the judgment result provided from the even/odd frame judgment unit, the a storage unit storing the obtained second address information and a type of the optical disc;
• a synchronization information selection unit configured to generate a selection signal for selecting one of the pieces of synchronization information to be written in each frame, on the basis of the second address information read from the storage unit according to a type number identification information read from the optical disc and the first address information of the frame from which existing of the land pre-pit is detected;
• and
• a selection information output unit configured to output the selected one of the pieces of synchronization information on the basis of the selection signal obtained from the synchronization information selection unit.