Interleaving method and circuit for high density recording medium

An interleaving circuit for improving an error correction capacity of a high density recording medium, the interleaving circuit comprising:

• an intrablock interleaver which interleaves received data having a predetermined error correction code within error correction blocks to output intrablock-interleaved data;
• and
• an interblock interleaver which interleaves the intrablock-interleaved data between the error correction blocks in units of a predetermined number of the error correction blocks, to output interblock-interleaved data.

An interleaving method of improving error correction capability of received data forming error correction blocks and corresponding to a recording medium, the method comprising:

• interleaving the received data having a predetermined correction code within each error correction block, to generate first interleaved data;
• and
• interleaving the first interleaved data of at least two of the error correction blocks, to generate second interleaved data.

An interleaving method of improving error correction capability of received data which form error correction blocks and corresponding to a recording medium having a higher density than a DVD recording medium, the method comprising:

• interleaving the received data from at least two of the error correction blocks, to generate interleaved data compatibly correctable using an error correction code of the DVD recording medium format.

An interleaving circuit for improving error correction capability of received data which form error correction blocks and corresponding to a recording medium, the interleaving circuit comprising:

• an intrablock interleaver which interleaves the received data having a predetermined correction code within each error correction block, to generate first interleaved data;
• and
• an interblock interleaver which interleaves the first interleaved data of at least two of the error correction blocks, to generate second interleaved data.