Patent ID: 7525882

Claim:
A system for controlling a storing of data on an optical recording medium, comprising: a controller configured to generate a write command and to transmit the write command along with input data to be written, the write command including a write type information indicating whether or not the input data requires real-time processing, the write type information being 1 bit among 1 byte; and a write unit configured to recognize the write type, and to write the input data to the optical recording medium according to the write command, wherein the write unit is configured to employ first technique to not replace a defective data block when the write type information indicates real-time processing, and the write unit is configured to employ second technique to replace a defective data block when the write type information indicates no real-time processing, and wherein the write unit is configured to generate a defect entry on the defective data block, the defect entry including a location information of the defective data block and a status information for indicating that the defective data block is not replaced if the write type information indicates the real-time processing, and alternatively, indicating that the defective data block is replaced if the write type information indicates no real-time processing.