The inventors of this invention conducted a test and found out that to prevent peel-off of an adherent film, it is not of essential importance to set the radius of curvature equal to or larger than a predetermined threshold. A second error signal obtained by comparing the voltages across two input capacitors connected between both ends of a DC input power supply is subtractedadded fromto a first error signal obtained from a voltage corresponding to a combined DC output of rectifying circuits and the voltage corresponding to a predetermined reference power. Approximately one to three blastomeres are removed from the donor embryo at Day 3 of development and introduced into a recipient embryo at Day 3. In one embodiment, the glass layer comprises of an un-tempered glass material. Based on the hash value result for the retrieved array and a hash value result of the array in the received digital signature, the media verifier verifies the integrity of the retrieved array.