RECORDING AND REPRODUCING APPARATUS, RECORDING AND REPRODUCING METHOD, AND METHOD OF DETERMINING TYPE OF RECORDING MEDIUM

摘要

A method of effectively determining a recording medium, a recording and reproducing method using the same, and a recording and reproducing apparatus using the same are disclosed. Since a narrow distance between a lens (136) and the recording medium must be maintained in the recording and reproducing using a near field, the recording and reproducing apparatus further includes a focus adjuster (135) to adjust a position where a light beam is focused. When a variation of a signal generated during the scanning of focused is detected by adjusting the focus adjuster, it is possible to determine the recording medium.