METHOD OF WRITING INTO UNWRITTEN AREA OF OPTICAL DISK, OPTICAL DISK WRITING DEVICE, OPTICAL DISK, AND PROGRAM FOR WRITING DATA ON OPTICAL DISK

摘要

PROBLEM TO BE SOLVED: To surely write data in a designated address area to enable reading even when there is an unwritten area ahead of the designated address area. SOLUTION: Processing for determining which of an unwritten area and a written area an address located ahead of an address designated for data writing is, and processing for writing data in the data writing area of an optical disk based on the determination result of the determination step are carried out. In the writing process, when the address located ahead of the designated address is determined to be a written area, data writing is executed from the designated address area. When the address located ahead of the designated address is determined to be an unwritten area, data writing is executed in an unwritten area including the unwritten area. COPYRIGHT: (C)2005,JPO&NCIPI