Abstract: A recording method includes storing at least one Error Correction Code (ECC) data cluster in a primary memory, scrambling data frames contained in the stored ECC data cluster using scramble shift values, storing data in a secondary memory, the data comprising data which is not contained in the data frames and is contained in the ECC cluster and a data block generated by the scrambling of the data frames, interleaving the data stored in the secondary memory, and recording the interleaved data on a disc.

Abstract: An error correction method and apparatus for use in an optical information storage medium recording/reproducing apparatus, in which an error data value is detected from the original data value stored in an external memory unit and a corrected data value for the error data value is updated to the external memory unit. The error correction method includes receiving position information about positions of a plurality of error data values detected by an error checking and correction (ECC) block and error data values for a plurality of codewords in a column direction, comparing the positions of the error data values of the codewords, and when the plurality of error data values have the same position, updating corrected data values for the error data values to the external memory unit using error values of the error data values at the same time.