A test recording is performed with respect to an optical disc prior to a regular
recording, and a value for setting a qualitative parameter relating to
the level of the recording state within a preferable range is derived from a result
of the test recording. Then, the recording velocity at which the derived
value or the writing laser power value is within the preferable value can be obtained.
Therefore, the recording velocity at which the satisfactory recording can be realized
with few recording errors can be determined. Further, a relation between a writing
laser power value and a value is obtained from the reproduced signal
from the test record area, and the writing laser power value is determined considering
the value. Therefore, it is possible to determine the writing laser
power value for performing a satisfactory recording even with the optical disc
having a characteristic of a so-called significant point at which the
value significantly changes with respect to the writing laser power value.