Information storage apparatus and method of controlling the same

An information storage apparatus, comprising:

• a formatting unit that formats a recording medium at a recording density in response to a first input command;
• a data read/write unit that performs a data read/write operation on the recording medium formatted by the formatting unit;
• a correction unit that corrects a position of a head while the formatting unit is formatting the recording medium;
• and
• a list producing unit that erases existing address list data representing a list of addresses having defective data, and produces new address list data of the recording medium formatted at a new recording density, while the formatting unit is formatting the recording medium.

A method of controlling an information storage apparatus that performs a data read/write operation on a recording medium, said method comprising the steps of:

• setting one of a plurality of control parameters, each parameter corresponding to a different one of a plurality of recording densities that the recording medium can have;
• determining whether the set control parameter is suitable for reading data from the recording medium;
• selecting the control parameter determined to be suitable for reading the data from the recording medium among the plurality of control parameters;
• and
• performing the data read/write operation on the recording medium by utilizing the selected control parameter.

A method of controlling an information storage apparatus, comprising the steps of:

• formatting a recording medium at a recording density corresponding to an input command;
• performing a data read/write operation on the formatted recording medium, wherein the formatting step includes the steps of:
• correcting a position of a read/write head;
• erasing existing address list data which shows a list of addresses having defective data;
• and
• producing new address list data of the recording medium formatted at a new recording density.