DVD-Audio disk, and apparatus and method for recording data on and/or reproducing data from the same

An apparatus for reproducing data from a DVD-Audio disk having an audio manager (AMG) having information on an audio title (ATS) and the ATS having audio title set information (ATSI) followed by contiguous audio objects (AOBs), the ATSI includes audio stream attributes, each audio stream attribute indicating an audio coding mode, a first, second, or third quantization bit number corresponding to the data to be reproduced, a first, second, third, fourth, fifth, or sixth sampling frequency corresponding to the data to be reproduced, and decoding algorithm information relating to a number of audio channels of the data to be reproduced, and each of the AOBs includes a plurality of audio packs recorded with audio data corresponding to the decoding algorithm stored in the audio stream attribute, the apparatus comprising:

• a data receiver to receive the audio data retrieved from the DVD-Audio disk;
• a controller to generate an audio control signal including the audio coding mode, the sampling frequency of the six potential sampling frequencies, the number of audio channels, and the detected one of the first through third quantization bit numbers based upon information on the audio data;
• an audio decoder to decode the audio data, to multi-channel mix, to sampling-frequency convert, to requantize the decoded audio signal according to the audio control signal, and to generate an output decoded audio data;
• and
• an audio output circuit to convert the output decoded audio data into an analog audio signal.