Information recording apparatus and method, and computer program product

An information recording apparatus comprising:

• a rotating device for rotating an information recording medium;
• a rotation controlling device for controlling said rotating device to thereby change a liner velocity of the information recording medium;
• an information recording device for recording record information onto the information recording medium by irradiating the information recording medium with laser light;
• a power controlling device for controlling a recording power of the laser light;
• and
• a first measuring device for measuring reproduction quality of the record information recorded on the information recording medium, wherein
• the liner velocity is changed by said rotation controlling device, and the recording power is controlled by said power controlling device so that the record information is additionally recorded with the recording power according to the reproduction quality measured by said first measuring device.

An information recording method on an information recording apparatus comprising an information recording device for recording record information onto an information recording medium by irradiating the information recording medium with laser light having a variable recording power,

• said information recording method comprising:
• a first measuring process of measuring, if the record information is additionally recorded, reproduction quality of the record information recorded in a recording area adjacent to the record information to be additionally recorded;
• and
• a recording process of recording the record information, wherein
• the record information is additionally recorded into a link area, which is next to the recording area adjacent to the record information to be additionally recorded, with a record parameter on which the reproduction quality measured in said first measuring process is obtained, if the record information is additionally recorded into the link area.

An information recording method on an information recording apparatus comprising:

• a rotating device for rotating an information recording medium;
• and an information recording device for recording record information onto the information recording medium by irradiating the information recording medium with laser light,
• said information recording method comprising:
• a rotation controlling process of controlling said rotating device to thereby change a liner velocity of the information recording medium;
• a power controlling process of controlling a recording power of the laser light;
• and
• a first measuring process of measuring reproduction quality of the record information recorded on the information recording medium, wherein
• the liner velocity is changed in said rotation controlling process, and the recording power is controlled in said power controlling process so that the record information additionally recorded with the recording power according to the reproduction quality measured by said first measuring device.

A computer program product in a computer-readable medium for tangibly embodying a program of instructions executable by a computer to make the computer function as an information recording apparatus,

• said information recording apparatus comprising:
• an information recording device for recording record information onto an information recording medium by irradiating the information recording medium with laser light having a variable recording power;
• and
• a first measuring device for measuring, if the record information is additionally recorded, reproduction quality of the record information recorded in a recording area adjacent to the record information to be additionally recorded;
• wherein
• said information recording device additionally records the record information into a link area, which is next to the recording area adjacent to the record information to be additionally recorded, with a record parameter on which the reproduction quality measured by said first measuring device is obtained, if the record information is additionally recorded into the link area.

A computer program product in a computer-readable medium for tangibly embodying a program of instructions executable by a computer to make the computer function as an information recording apparatus,

• said information recording apparatus comprising:
• a rotating device for rotating an information recording medium;
• a rotation controlling device for controlling said rotating device to thereby change a liner velocity of the information recording medium;
• an information recording device for recording record information onto the information recording medium by irradiating the information recording medium with laser light;
• a power controlling device for controlling a recording power of the laser light;
• and
• a first measuring device for measuring reproduction quality of the record information recorded on the information recording medium, wherein
• the liner velocity is changed by said rotation controlling device, and the recording power is controlled by said power controlling device so that the record information is additionally recorded with the recording power according to the reproduction quality measured by said first measuring device.