Optical recording medium and apparatus for recording/reproducing data on or from the same
A technology for optical recording media and data, applied to optical recording media, information recording on magnetic disks, accessories for indicating/preventing previous/unnecessary use, etc., can solve the problem of not providing effective methods to reduce limited data recording of optical disks Capacity and other issues
Inactive Publication Date: 2006-06-28
LG ELECTRONICS INC
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Problems solved by technology
[0008] However, since the navigation information is recorded in the lead-in area, data area, or lead-out area respectively allocated on the plane of the optical disc as described above, if various navigation information is additionally recorded on the optical disc, the limited data recording capacity of the optical disc will be reduced.
However, no effective method to overcome this problem has been provided
Method used
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[0020] Preferred optical recording media and devices for recording / reproducing data thereon will be described in detail with reference to the accompanying drawings.
[0021] Example.
[0022] first reference figure 1 As described above, an optical recording medium (an optical disc such as a CD, DVD, or BD) according to the present invention has a lead-in area, a data area, and a lead-out area respectively assigned to planes of the optical disc. Such as image 3 As shown, various types of information such as copy protection information (CPI), disc type identification (Disc_Type), and disc information (DI) such as disc side data (DDS) are recorded on the side of the disc.
[0023] The DDS data may be recorded on the side of the disc during the stamping process after the disc is cut, during the laser-based disc cutting process, or during the barcode printing process during the disc manufacturing process. The DDS data can be in embossed or scratched form (e.g. image 3 In the ...
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An optical recording medium such as an optical disc and an apparatus for recording / reproducing data on or in the medium are provided. Various information such as copy protection information, disc type identification, or disc main information are recorded on the side (or peripheral edge) of an optical disc such as a CD, DVD, or BD. When an optical disc is loaded, data recorded on the side of the optical recording medium is read and a playback operation is performed based on the read data. Various additional information can be efficiently recorded on the side of the optical recording medium without reducing the capacity of the optical disc. When a disc is loaded, the disc type can be determined more quickly. Easy copying of main information such as copy-protected information can be effectively prevented.
Description
technical field [0001] The present invention relates to an optical recording medium and apparatus for recording / reproducing data thereon, and more particularly to an optical disc such as a CD, DVD or BD (Blu-ray Disc) on which data is recorded on its side (or peripheral edge). Background technique [0002] In general, optical disks such as CDs or DVDs have been widely distributed and commercialized as media that can store digital data. Optical disc devices capable of reproducing and recording data on optical discs have been commercialized. Recently, a new type of high-density optical disc capable of reproducing or recording a large amount of high-quality audio data and a large amount of high-quality video data is being developed. [0003] Such as figure 1 As shown, the optical disc includes a fixed area allocated to the innermost peripheral structure of the optical disc and also includes a lead-in area, a data area, and a lead-out area allocated in order from the innermost...
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IPC IPC(8): G11B7/007G11B19/12G11B20/00G11B23/28G11B23/30G11B27/19G11B27/24
CPCG11B7/00736G11B19/12G11B20/00086G11B20/00876G11B23/284G11B23/30G11B27/19G11B27/24G11B2220/213G11B2220/216G11B2220/2541G11B2220/2545G11B2220/2562G11B7/007
Inventor 朴廷培
Owner LG ELECTRONICS INC