Recording medium, recording apparatus, and reading apparatus

A recording apparatus for recording data on a recording medium on which material information representing a material of a recording layer of said recording medium is recorded, said recording apparatus comprising:

• determining means for determining physical characteristics of said recording medium by reading the material information;
• and
• recording control means for performing a setting for a recording operation according to the physical characteristics determined by said determining means, and for allowing the recording operation to be performed, wherein
• said recording control means generates main-data management information by incorporating the material information read from the wobbling groove on said recording medium in accordance with a main-data recording operation performed on said recording medium, and records the main-data management information on said recording medium.

A recording apparatus for recording data on a recording medium on which material information representing a material of a recording layer of said recording medium is recorded, said recording apparatus comprising:

• determining means for determining physical characteristics of said recording medium by reading the material information;
• and
• recording control means for performing a setting for a recording operation according to the physical characteristics determined by said determining means, and for allowing the recording operation to be performed, wherein
• pre-pits and a groove which composes a recording track are formed on said recording medium, and said determining means reads the material information from the pre-pits.

A reading apparatus for reading data from a recording medium on which material information representing a material of a recording layer of said recording medium is recorded, said reading apparatus comprising:

• determining means for determining physical characteristics of said recording medium by reading the material information;
• and
• reading control means for performing a setting for a reading operation according to the physical characteristics determined by said determining means, and for allowing the reading operation to be performed, wherein
• pre-pits and a groove which composes a recording track are formed on said recording medium, and said determining means reads the material information from the pre-pits.

A recording/reading apparatus for performing at least one of a recording operation and a reading operation on a recording medium, said recording medium including a material information code recorded thereon, said material information code identifying a material of a recording layer of said recording medium, said recording/reading apparatus comprising:

• a motor for driving the rotation of said recording medium;
• an optical head for applying laser light to said recording medium and for detecting light reflected by said recording medium;
• determining means for determining physical characteristics of said recording medium by reading the material information from the reflected light detected by said optical head, wherein said material information code identifies said material of said recording Layer of a non-registered recording medium;
• and
• recording control means for performing a setting for the recording operation according to the physical characteristics determined by said determining means, and for allowing the recording operation to be performed.

A recording/reading apparatus for performing at least one of a recording operation and a reading operation on a recording medium on which material information representing a material of a recording layer of said recording medium is recorded, said recording/reading apparatus comprising:

• a motor for driving the rotation of said recording medium;
• an optical head for applying laser light to said recording medium and for detecting light reflected by said recording medium;
• determining means for determining physical characteristics of said recording medium by reading the material information from the reflected light detected by said optical head;
• and
• recording control means for performing a setting for the recording operation according to the physical characteristics determined by said determining means, and for allowing the recording operation to be performed, wherein
• said recording control means generates main-data management information by incorporating the material information read from the wobbling groove on said recording medium in accordance with a main-data recording operation performed on said recording medium, and records the main-data management information on said recording medium.

A recording/reading apparatus for performing at least one of a recording operation and a reading operation on a recording medium on which material information representing a material of a recording layer of said recording medium is recorded, said recording/reading apparatus comprising:

• a motor for driving the rotation of said recording medium;
• an optical head for applying laser light to said recording medium and for detecting light reflected by said recording medium;
• determining means for determining physical characteristics of said recording medium by reading the material information from the reflected light detected by said optical head;
• and
• recording control means for performing a setting for the recording operation according to the physical characteristics determined by said determining means, and for allowing the recording operation to be performed, wherein
• pre-pits and a groove which composes a recording track are formed on said recording medium, and said determining means reads the material information from the pre-pits.