Providing method of record carriercomprising encryption indication information, reader and recorder and method
A technology for encrypting indications and recording carriers, applied in the direction of optical recording/reproduction, digital recording/reproduction, accessories for indicating/preventing previous/unnecessary use, etc. Issues such as reduced drive performance
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[0028] figure 1 Shown is a block diagram of a PC 1 comprising a drive 2 (e.g. an optical drive) capable of reading data from and writing data to a record carrier 10, a CPU 3 (Central Processing Unit), a memory 4 and a graphics card 5, All these components are connected to the communication bus 6 . For the sake of simplicity, no further details of the PC 1 are shown, although of course the PCI also includes additional and other components.
[0029] figure 2 A block diagram of a drive 2 according to the invention is shown. For reading data from the record carrier 10 a reading unit 21 is provided; for writing data to the record carrier 10 a writing unit 22 is provided. When reading user data U stored in a sector S from the record carrier 10, as in image 3 Taking an optical disc each having a sector length of 2048 bytes as an example, the relevant management information M (which has n words in this embodiment) stored in the sector header H related to each sector S is shown a...
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