Abstract: This invention provides an information recording medium, and a method and apparatus for writing to/reading from a recording medium in which a starting point of a spare area is variable relative to a starting point of a data area. Information concerning a variable boundary between the data area and the spare area is stored on the recording medium. A method and apparatus for writing/reproducing data to/from the recording medium is also provided. In a preferred embodiment, the recording medium is an optical disc.

Abstract: This invention provides an information recording medium, and a method and apparatus for writing to/reading from a recording medium in which a starting point of a spare area is variable relative to a starting point of a data area. Information concerning a variable boundary between the data area and the spare area is stored on the recording medium. A method and apparatus for writing/reproducing data to/from the recording medium is also provided. In a preferred embodiment, the recording medium is an optical disc.

Abstract: This invention provides an information recording medium, and a method and apparatus for writing to/reading from a recording medium in which a starting point of a spare area is variable relative to a starting point of a data area. Information concerning a variable boundary between the data area and the spare area is stored on the recording medium. A method and apparatus for writing/reproducing data to/from the recording medium is also provided. In a preferred embodiment, the recording medium is an optical disc.

Abstract: This invention provides an information recording medium, and a method and apparatus for writing to/reading from a recording medium in which a starting point of a spare area is variable relative to a starting point of a data area. Information concerning a variable boundary between the data area and the spare area is stored on the recording medium. A method and apparatus for writing/reproducing data to/from the recording medium is also provided. In a preferred embodiment, the recording medium is an optical disc.

Abstract: This invention provides a method and apparatus for manufacturing an optical recording medium in which ratios of spare areas to data areas differ from one zone to another, and which has information concerning the unequal or non-uniform boundaries between the data areas and the spare areas, and a method and apparatus for writing/reproducing data to/from the optical recording medium. The apparatus for manufacturing the optical recording medium comprises a ratio setting unit for keeping each zone's ratio of spare area to data area, which depends on the relative location of the zone on the optical recording medium; a laser beam generator for generating a laser beam; a beam permeating unit for selectively controlling transmission of the laser beam; a pickup location detector for detecting a focused position of the transmitted beam onto the optical recording medium; and an optical transmission controller for controlling the transmission of the laser beam which passes through the optical transmitting unit.

Abstract: The present invention relates to an apparatus and method for providing and obtaining product information through a broadcast signal. In this present invention, information identifying a product item, which is in a scene to be presented from a broadcast signal, and address information of a web site providing detailed shopping information for the product item are provided together with a broadcast signal, then a signal receiving terminal stores the provided information, displays the stored information to a viewer to select one product item while or after watching an interesting broadcast program, and transmits a web site address associated with a selected product item to a network. As a result, detailed information for the selected item is acquired from a server addressed by the web site address.

Abstract: The present invention relates to an apparatus and method for providing and obtaining product information through a broadcast signal. In this present invention, information identifying a product item, which is in a scene to be presented from a broadcast signal, is provided together with a broadcast signal, then a signal receiving terminal stores the product information for a new product item and displays the stored information to a viewer to select one product item while or after watching an interesting broadcast program, and transmits data identifying a selected product item to a predetermined web site and receives web site address for the selected item from that site. As a result, detailed information for the selected item is acquired from a server addressed by the received web site address.