Patent ID: 7539099

Claim:
An information recording apparatus for recording information on an information recording medium comprising a phase-change material that is recordable and rewritable, the recording apparatus comprising: determining device for determining whether recording conditions specific to said information recording medium are recorded in one of a predetermined area inside of and a predetermined area outside of said apparatus, said specific recording conditions including a length of each of a plurality of multi-pulses; recording condition reading device for reading said specific recording conditions if said specific recording conditions are recorded in said predetermined area inside of said apparatus; recording device for recording said information in said phase-change material based on said specific recording conditions; evaluating device for performing trial writing of test data on a trial writing area of said information recording medium based on predetermined default recording conditions when said specific recording conditions are not recorded, for reproducing said test data from said trial writing area, and for evaluating a signal obtained when reproducing said test data, said evaluating a signal comprising determining upper and lower limits of an RF signal; and evaluating result determining device for: evaluating whether or not the information can be actually recorded using said default recording conditions; evaluating whether or not recording can be performed in such a degree of recording quality that reproduction can be made therefrom; and if a determination is made that the degree of recording quality cannot be obtained, not recording, wherein criterion of said evaluating device evaluating said signal is a jitter amount of said signal, and wherein, when said jitter amount is less than or equal to 10%, recording of information is started; wherein the information recording apparatus further comprising: information device for providing a result of said evaluation of said signal obtained when reproducing said test data to a user; selection receiving device for receiving a user selection from said user as to whether information recording on said information recording medium is to be carried out when there is no possibility or low possibility that recorded information can be properly reproduced; and wherein said recording device is further configured to record said information based on said predetermined default recording conditions when said user selection is to carry out information recording; and stop information recording when said user selection is to stop information recording.