Abstract: An optimal recording method for optical recording media which is capable of recording information about optimum recording conditions on an optical recording medium in order to allow a subsequent recording of data at an optimum recording power, based on the recorded optimum recording condition information. In this method, test data is recorded to allow derivation of an optimum power value based on reproduction characteristics of the test data. An intrinsic recorder ID information of an optical recording/reproducing apparatus, used to record data on the optical recording medium, and information about the record speed of the apparatus are recorded, along with the derived optimum power value, onto the count area of the optical recording medium or respective lead-in areas of sessions. The apparatus reads out the recorded optimum recording condition information when data is subsequently recorded onto the optical recording medium.

Abstract: An optimal recording apparatus and method for optical recording media are disclosed which are capable of recording data on the optical recording medium under optimum conditions in an optical recording/reproducing apparatus. In accordance with the optimal recording apparatus and method, a reference power value recorded on an optical recording medium is first read out. Test data is then recorded onto a first field of a test data in the optical recording medium under a condition in which a recording power value is varied with reference to the read power value. The test data recorded on the first field is subsequently reproduced in order to determine an optimum recording power value from the reproduced characteristics. Based on the determined optimum recording power value, test data is recorded on a second field of the test area under a condition in which a format of recording signals is varied. The test data recorded on the second field is subsequently reproduced in order to determine an optimum write strategy.

Abstract: An optical recording medium and method for recording/reproducing data on/from the optical recording medium having an optimum recording condition information, are provided. The method includes reading out a reference recording condition recorded on a specific area of the optical recording medium; recording test data while varying a recording condition with respect to the reference recording condition; determining an optimum recording power based on reproduction characteristics of the test data; and recording a recoding condition data including the optimum recording power, recording speed and write strategy type to be used or used to record data, on a specific area of the optical recording medium.

Abstract: According to an embodiment, an apparatus for recording data in a recording medium, includes a reading/recording unit recording or reading data on or from the recording medium, the read data including a position information, the position information indicating a last recorded position and a recordable position for new data to be recorded; and a controller examining whether or not an area corresponding to the recordable position has an already recorded data, and determining whether to change the recordable position to another position for recording the new data based on the examination result, the another position being physically separated from the recordable position indicated by the read data recording information, wherein the controller identifies another position for recording the new data if the area has the already recorded data.

Abstract: An optimal recording method for optical recording media which is capable of recording information about optimum recording conditions on an optical recording medium in order to allow a subsequent recording of data at an optimum recording power, based on the recorded optimum recording condition information. In this method, test data is recorded to allow derivation of an optimum power value based on reproduction characteristics of the test data. An intrinsic recorder ID information of an optical recording/reproducing apparatus, used to record data on the optical recording medium, and information about the record speed of the apparatus are recorded, along with the derived optimum power value, onto the count area of the optical recording medium or respective lead-in areas of sessions. The apparatus reads out the recorded optimum recording condition information when data is subsequently recorded onto the optical recording medium.

Abstract: An optimal recording apparatus and method for optical recording media are disclosed which are capable of recording data on the optical recording medium under optimum conditions in an optical recording/reproducing apparatus. In accordance with the optimal recording apparatus and method, a reference power value recorded on an optical recording medium is first read out. Test data is then recorded onto a first field of a test data in the optical recording medium under a condition in which a recording power value is varied with reference to the read power value. The test data recorded on the first field is subsequently reproduced in order to determine an optimum recording power value from the reproduced characteristics. Based on the determined optimum recording power value, test data is recorded on a second field of the test area under a condition in which a format of recording signals is varied. The test data recorded on the second field is subsequently reproduced in order to determine an optimum write strategy.

Abstract: Disclosed is an optimal recording method for optical recording media which is capable of recording information about optimum recording conditions on an optical recording medium in order to allow a subsequent recording of data at an optimum recording power, based on the recorded optimum recording condition information. In this method, test data is recorded to allow derivation of an optimum power value based on reproduction characteristics of the test data. An intrinsic recorder ID information of an optical recording/reproducing apparatus, used to record data on the optical recording medium, and information about the record speed of the apparatus are recorded, along with the derived optimum power value, onto the count area of the optical recording medium or respective lead-in areas of sessions. The apparatus reads out the recorded optimum recording condition information when data is subsequently recorded onto the optical recording medium.

Abstract: An optimal recording apparatus and method for optical recording media are disclosed which are capable of recording data on the optical recording medium under optimum conditions in an optical recording/reproducing apparatus. In accordance with the optimal recording apparatus and method, a reference power value recorded on an optical recording medium is first read out. Test data is then recorded onto a first field of a test data in the optical recording medium under a condition in which a recording power value is varied with reference to the read power value. The test data recorded on the first field is subsequently reproduced in order to determine an optimum recording power value from the reproduced characteristics. Based on the determined optimum recording power value, test data is recorded on a second field of the test area under a condition in which a format of recording signals is varied. The test data recorded on the second field is subsequently reproduced in order to determine an optimum write strategy.

Abstract: The present invention relates to method and apparatus for recording new data in a writable disk such as a once-writable disk CD-R and a rewritable disk CD-RW after previous recording to the disk is interrupted abnormally. A method of determining a recordable position of a writable disk according to the present invention, reads data recording information of the writable disk, examines whether or not an area after a recordable position indicated by the read data recording information has recorded data, and changes the recordable position to another position for new input data if the area has recorded data. Therefore, new data is always written after any uncompleted data track without being written over previously recorded data even if the recording information of an uncompleted data track is wrong or unusable.

Abstract: An optical recording medium and method for recording/reproducing data on/from the optical recording medium having an optimum recording condition information, are provided. The method includes reading out a reference recording condition recorded on a specific area of the optical recording medium; recording test data while varying a recording condition with respect to the reference recording condition; determining an optimum recording power based on reproduction characteristics of the test data; and recording a recoding condition data including the optimum recording power, recording speed and write strategy type to be used or used to record data, on a specific area of the optical recording medium.

Abstract: A method and apparatus for optimally recording data on an optical recording medium by controlling recording beam power depending upon the state of the recording layer of the recording medium. To compensate for variant reflection ratio at inner and outer radius caused by the uneven recording layer thickness, the power of recording beam is adjusted and as a result the asymmetric ratio is maintained constant over the recording medium without regard to the radius. A signal associated with the recording layer thickness variation is detected and the recording beam power is adjusted to compensate for the variation of the characteristic of recorded marks, based upon the signal. The adjusted recording beam power is not readjusted by the running optimal power control (ROPC). The method in accordance with the present invention provides a constant asymmetric ratio over the recording medium, thereby reducing the likelihood of reproduced data error.

Abstract: A method and apparatus for optimally recording data on an optical recording medium by controlling recording beam power depending upon the state of the recording layer of the recording medium. To compensate for variant reflection ratio at inner and outer radius caused by the uneven recording layer thickness, the power of recording beam is adjusted and as a result the asymmetric ratio is maintained constant over the recording medium without regard to the radius. A signal associated with the recording layer thickness variation is detected and the recording beam power is adjusted to compensate for the variation of the characteristic of recorded marks, based upon the signal. The adjusted recording beam power is not readjusted by the running optimal power control (ROPC). The method in accordance with the present invention provides a constant asymmetric ratio over the recording medium, thereby reducing the likelihood of reproduced data error.