Patent ID: 6667948
Filing Date: 2003-12-23
Classification: G11B

Abstract:
An optical recording medium, comprising:a transparent substrate, including an opening at a center thereof; a read only data region on the transparent substrate, the read only data being used to store a pre-recording data which can be read only and unable to be rewritten; a writable/readable data region on the transparent substrate, a recording data thereon being able to be read and rewritten; and a content recording region, located on the transparent substrate to record initial address information of recording data and recording regions of the read only data region, and initial address information of the recording data and recording regions of the writable/readable data region, said content recording region comprising a first content data region located at an inner periphery of the transparent substrate to record the initial address information of the recording data of the read only data region, the initial address information of the recording regions of the read only data region, and the initial address information of the recording regions of the writable/readable data region.