MAGNETO-OPTICAL DISK DRIVING DEVICE

PURPOSE: To improve reliability in setting recording and reproducing conditions by performing the erasure of a magnetic domain in which a test recording is executed after setting an erasing condition right after the test recording and minimizing the fluctuation of recording conditions while preventing the magnetic characteristics fluctuation in a test recording area as much as possible. CONSTITUTION: This device is constituted of a magneto-optical disk drive for performing recording and erasing and a magneto-optical disk for forming a recording magnetic domain and has a test area and a data area on the magneto-optical disk. Then, the erasing of the magnetic domain subjected to the test recording must certainly be performed right after the test recording by setting the erasing condition of an optimum value matched with an ambient temp. and a driving situation. Thus, since the recording sensitivity fluctuation of a recording medium due to the reception of the recording and the erasing is not generated and this device is correctly set to a recording condition matched with a use environment, a recording magnetic domain form can always be correctly controlled to be constant. Especially, when executing mark edge recording, since the setting accuracy of an optimum recording condition is increased, the length of the recording magnetic domain is correctly controlled and then a higher density recording is realized.