Block and Codeword Interleaving Scheme for the High Density Digital Versatile Disc

The effect of noises from smaller dusts and scratches is higher than the conventional optical storage systems, e.g. , compact disc(CD) or digital versatile disc(DVD) by the higher numerical aperture (NA=0.85) and thin cover layer (0.1 mm) of the high density DVD. Accordingly, new error correcting code (ECC) is needed to correct not only both short burst errors and random errors but also long burst errors. So, the interleaving scheme between two ECC blocks is considered to improve the error correction capability. In this paper, we will show our new block and codeword interleaving scheme (BCIS) and calculate the block error rate of BCIS after error correcting by probability method under the error model of Sony's burst error distribution and compare with the conventional reed-solomon product code(RSPC) of DVD.