Decoding apparatus for high-density recording medium

A decoding apparatus for a high-density recording medium, comprising:

• a demodulator, for receiving and demodulating a data from the high-density recording medium, so as to obtain a demodulated data and a demodulation error flag;
• a long-distance code (LDC) processing module, coupled to the demodulator, for deinterleaving the demodulated data to obtain an LDC data;
• a burst indicator subcode (BIS) processing module, coupled to the demodulator, for deinterleaving the demodulated data to obtain a BIS data, and storing the BIS data and a BIS error flag;
• an erasure code generator, coupled to the LDC processing module and the BIS processing module, for setting an erasure flag corresponding to the LDC data according to the demodulation error flag and the BIS error flag;
• and
• a decoder, coupled to the LDC processing module, the BIS processing module, and the erasure code generator, for decoding the LDC data according to the erasure flag, and decoding the BIS data to obtain the BIS error flag.