Patent ID: 6343054
Filing Date: 2002-01-29
Classification: G11B

Abstract:
A recording and/or reproducing apparatus of the type including:a system controller; a memory means for storing, in a sector-based data storing area, data to be recorded on a recording medium and/or data which is read out from the recording medium and in which a recording operation of the data on the recording medium or a reproducing operation of the data from the recording medium is carried out by writing data into the memory means and reading the data out of the memory means; memory control means for controlling the writing of data into the memory means and the reading of data out of the memory means, wherein the improvement comprises that the memory control means, autonomously with respect to the system controller, creates a sector data storing area and an additive data storing area in each sector-based data storing area in the memory means to store prescribed data in the additive data storing area in accordance with the sector-based data which is stored in the sector data storing area and stores the prescribed data in the additive data storing area in accordance with the sector-based data stored in the sector data storing area.