Patent attributes
The present invention relates to a system with read protecting function that comprises a record medium, having a data substrate with a control data zone and a data zone thereon, wherein the control data zone has a plurality of blocks, and every block has a plurality of sectors, and every sector has a plurality of bytes, and the data zone has encoded data, as well as a control code is disposed in the one of the sectors in control data zone; an optical storage device, for loading the record medium and reading and identifying the control code, then decoding the control code and outputs the decoded data if the control code is identifiable; or directly output the encoded data if the control code is not identifiable. Furthermore, the present invention relates to a method for protecting a record medium.
