A physical structure, apparatus for recording/reproducing on/from a recording medium using the same and method thereof are disclosed, by which the physical structure suitable for such a recording medium as BD and the like may be provided. The present invention includes a plurality of recording layers. Each of the recording layers includes a power test area not provided to a physically same position and a management area not provided to a physically same position, wherein a layer having the power test zone and the management area allocated consecutively includes a test area buffer allocated to the power test zone.