Host system, driving apparatus, information recording and reading method for the host system, and information recording and reading method for the driving apparatus

A driving apparatus used in combination with a host system, the driving apparatus comprising:

• a recording and reading section for recording information on an information recording medium and reading information recorded on the information recording medium;
• and
• an instruction receiving section for receiving, from the host system, an instruction including designation information designating an operation type of an operation to be performed by the recording and reading section, and advanced notice information indicating whether the operation type of an operation immediately subsequent to the operation designated by the designation information is the same as the operation type of the operation designated by the designation information,
• wherein:
• the operation type is either one of a recording operation of recording information on the information recording medium or a reading operation of reading information recorded on the information recording medium, and
• the recording and reading section determines whether the operation type of the operation immediately subsequent to the operation designated by the designation information is the recording operation or the reading operation based on the designation information and the advanced notice information received by the instruction receiving section, and starts positioning for the determined operation type.

An information recording and reading method for a host system used in combination with a driving apparatus for recording information on an information recording medium and reading information recorded on the information recording medium, the method comprising the steps of:

• generating an instruction including designation information designating an operation type of an operation to be performed by the driving apparatus, and advanced notice information indicating whether the operation type of an operation immediately subsequent to the operation designated by the designation information is the same as the operation type of the operation designated by the designation information;
• and
• outputting the instruction to the driving apparatus,
• wherein the operation type is either one of a recording operation of recording information on the information recording medium or a reading operation of reading information recorded on the information recording medium.

An information recording and reading method for a driving apparatus used in combination with a host system, the driving apparatus including a recording and reading section for recording information on an information recording medium and reading information recorded on the information recording medium, the method comprising the steps of:

• receiving, from the host system, an instruction including designation information designating an operation type of an operation to be performed by the recording and reading section, and advanced notice information indicating whether the operation type of an operation immediately subsequent to the operation designated by the designation information is the same as the operation type of the operation designated by the designation information, wherein the operation type is either one of a recording operation of recording information on the information recording medium or a reading operation of reading information recorded on the information recording medium;
• determining whether the operation type of the operation immediately subsequent to the operation designated by the designation information is the recording operation or the reading operation based on the received designation information and the received advanced notice information;
• and
• starting positioning for the determined operation type.