Data recording/reproducing method with robust error handling capability and data recording/reproducing apparatus thereof

A data recording method comprising:

• creating at least one copy of an original file to be recorded on a recording medium;
• dividing the original file and the at least one copy into a plurality of blocks, each block having a predetermined size, respectively;
• alternately reading predetermined ones of blocks from the respective blocks of the original file and the copy;
• recording the read blocks on the recording medium;
• and
• recording the predetermined block size and the number of copies on the recording medium.

A data reproducing method that reproduces data from a recording medium, wherein the data is recorded on the recording medium using a data recording method that divides the data into blocks, each block having a predetermined size, repeatedly records each of the blocks a predetermined number of times on the recording medium, and records the predetermined block size and the predetermined number of copies on the recording medium, the data reproducing method comprising:

• reading the blocks from the recording medium;
• extracting desired blocks from the read blocks without replication with reference to the predetermined block size and the predetermined number of copies;
• determining whether an unrecoverable error is generated in the extracted blocks;
• and
• if the unrecoverable error is generated in the extracted blocks, performing error-correction using a different block corresponding to the block with the unrecoverable error.

A method of recording/reproducing data from a data file having at least one data frame, the method comprising:

• dividing the data frame into a plurality of blocks, each block having a predetermined size;
• copying each data block a predetermined number of times;
• sequentially recording each of the data blocks and the copied data blocks on the recording medium such that the copied data blocks allow for recorded data to be reproduced after a defect occurs on the recording medium;
• and
• recording the predetermined block size and the predetermined number of times, respectively, in a storage location.

A method of recording/reproducing data from a data file having at least one data frame divided into data blocks, the method comprising:

• copying each data block a predetermined number of times;
• recording each data block in sequential order with the respective copied data blocks;
• extracting data from the recording medium according to a size of each data block and the number of copies of each data block;
• and
• performing an error correction on each of the data blocks with the extracted data having an error, the error correction being performed by replacing a damaged sector with a corresponding sector of a copied data block related to the damaged block or by correcting the damaged sector using an error correction code of the corresponding sector of the copied data block related to the damaged block, wherein
• the copied data blocks allow for recorded data to be reproduced after a defect occurs on the recording medium.

An optical disc recording and/or reproducing apparatus comprising:

• a coder/decoder to compress information using a compression method;
• a frame format coder to format each frame of data compressed by the coder/decoder;
• a frame reorganizer to divide a frame output from the frame format coder into a plurality of blocks, each block having a predetermined block size and to repeatedly output each of the blocks a predetermined number of times to produce at least one copy of each block;
• a channel modulator to modulate data output from the frame reorganizer into a data format to be recorded on a disc;
• a recording unit to control a laser diode included in an optical pickup so that the data modulated by the channel modulator is recorded on the disc;
• and
• a system controller to generate sector addresses of data to be recorded on the disc and disc management information while controlling an entire recording system, to provide information regarding the predetermined block size and the predetermined number of block recordings to the frame reorganizer, and to record the predetermined block size and the predetermined number of block recordings on a predetermined area of the disc after recording is complete.

An optical disc recording and/or reproducing apparatus comprising:

• a signal processor to amplify and reshape an RF signal generated through an optical pickup to output a digital signal;
• a channel demodulator to channel-demodulate the digital signal output from the signal processor;
• a frame extractor to divide a frame output from the channel demodulator into blocks with a block size, extract desired blocks from the divided blocks without replication, and repeatedly output the extracted blocks a predetermined number of times;
• a frame format decoder to decode a format for each frame of data extracted from the frame extractor;
• a coder-decoder to perform data extension on the data output from the frame format decoder according to a compression coding method;
• and
• a system controller to generate sector addresses for reading desired information from a host computer with reference to management information recorded on the disc, provide the sector addresses to a servo unit, and provides the block size and the number of block recordings, with which each block was copied on the disc, recorded on a predetermined area of the disc to the frame extractor.

An optical disc recording and/or reproducing apparatus with an optical pickup to record/reproduce data such that recorded data is reproduced after a defect occurs on a recording medium, the apparatus comprising:

• a recording unit to record data onto the recording medium, the recording unit
• to divide a data frame into at least one data block having a predetermined size and output each data block a predetermined number of times to form at least one copy of each data block, and
• to modulate a format of the divided blocks so that the data is recorded on the recording medium;
• and
• a reproducing unit to reproduce data recorded on the recording medium, the reproducing unit
• to demodulate the data from signal generated by the optical pickup, and
• to divide the demodulated signal into data blocks, each block having the predetermined size, and to output the extracted data blocks the predetermined number of times.

A computer readable medium comprising computer readable code to control at least one processing element in a computer to implement a method of recording/reproducing data from a data file having at least one data frame, the method comprising:

• dividing the data frame into a plurality of blocks, each block having a predetermined size;
• copying each data block of the data frame a predetermined number of times;
• sequentially recording each of the data blocks and the copied data blocks on the recording medium such that the copied data blocks allow for recorded data to be reproduced after a defect occurs on the recording medium;
• and
• recording the predetermined block size and the predetermined number of times, respectively, on the recording medium.