Write and/or erase method and storage apparatus

A write and/or erase method for a storage apparatus which writes and/or erases information by irradiating a light beam with respect to a target track on a recording medium, comprising the steps of:

• (a) setting a write and/or erase power of the light beam with respect to the target track is located;
• and
• (b) setting a write and/or erase slice level that is used to detect an external vibration or shock applied on the storage apparatus with respect to the target track depending on the write and/or erase powers,
• wherein said step (b) decreases the write and/or erase slice level depending on an increase of the write and/or erase power or, increases the write and/or erase slice level depending on a decrease of the write and/or erase power.

A write and/or erase method for a storage apparatus which writes and/or erases information by irradiating a light beam with respect to a target track on recording medium, comprising the steps of:

• (a) setting a write and/or erase power of the light beam with respect to the target track;
• and
• (b) setting at least one parameter selected from write and/or erase parameters depending on the write and/or erase power, said write and/or erase parameters including a first write and/or erase slice level that is used to detect an off-track of the light beam with respect to the target track, an off-track detection time constant, a second write and/or erase slice level that is used to detect an external vibration or shock applied on the storage apparatus, and a shock detection time constant that is used to detect the external vibration or shock,
• wherein said step (b) decreases at least the first or second write and/or erase slice level depending on an increase of the write and/or erase power or, increases at least the first or second write and/or erase slice level depending on a decrease of the write and/or erase power, as the at least one parameter.

A storage apparatus which writes and/or erases information by irradiating a light beam with respect to a target track on a recording medium, comprising:

• a first setting section configured to set a write and/or erase power of the light beam with respect to the target track;
• and
• a second setting section configured to set a write and/or erase slice level that is used to detect an off-track of the light beam with respect to the target track depending on the write and/or erase power,
• wherein said second setting section decreases the write and/or erase slice level depending on an increase of the write and/or erase power or, increases the write and/or erase slice level depending on a decrease of the write and/or erase power.

A storage apparatus which writes and/or erases information by irradiating a light beam with respect to a target track on a recording medium, comprising:

• a first setting section configured to set a write and/or erase power of the light beam with respect to the target track;
• and
• a second setting section configured to set a write and/or erase slice level that is used to detect an external vibration or shock applied on the storage apparatus with respect to the target track depending on the write and/or erase power,
• wherein said second setting section decreases the write and/or erase slice level depending on an increase of the write and/or erase power or, increases the write and/or erase slice level depending on a decrease of the write and/or erase power.

A storage apparatus which writes and/or erases information by irradiating a light beam with respect to a target track on a recording medium, comprising:

• a first setting section configured to set a write and/or erase power of the light beam with respect to the target track;
• and
• a second setting section configured to set at least one parameter selected from write and/or erase parameters depending on the write and/or erase power, said write and/or erase parameters including a first write and/or erase slice level that is used to detect an off-track of the light beam with respect to a track on the recording medium, an off-track detection time constant, a second write and/or erase slice level that is used to detect an external vibration or shock applied on the storage apparatus, and a shock detection time constant that is used to detect the external vibration or shock,
• wherein said second setting section decreases at least the first or second write and/or erase slice level depending on an increase of the write and/or erase power or, increases at least the first or second write and/or erase slice level depending on a decrease of the write and/or erase power, as the at least one parameter.