ross nterleave eed-Solomon ode is a method of error detection and correction employing Reed-Solomon parity bytes together with different interleaving, or delay, patterns that assists in error correction by distributing concentrated read errors over multiple frames that then form the input to a CIRC decoder. After the first deinterleave, CD discs correct small read errors at the C1 level, followed by a second deinterleave and correction of large read errors at the C2 level.