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In this paper, we proposed a new Physical Address Decoder using digital Hybrid demodulation techniques for the Blu-ray Disc System. The proposed new digital MSK demodulation technique and the STW demodulation technique are quite simple to realize compared to the conventional demodulation method. As a result, the hardware complexity of the physical address decoder was greatly reduced. Also, according to the experimental results, the performance of the new Physical Address Decoder proposed in this paper, was proved to be very stable and robust.