Patent ID: 7630282

Claim:
A recording method, comprising; preparing an audio disk comprising a first audio zone which is an area for recording therein both of a plurality of tracks each including a single piece of music and first management information including first control information for allowing each track to be reproduced, wherein the plurality of tracks are recorded in a group, the music is composed of a signal based on either a linear PCM (Pulse Code Modulation) signal or a signal produced by applying lossless compression to the linear PCM signal, the linear PCM signal is an audio signal subjected to quantization at both a sampling frequency and the number of quantization bits on a DVD-Audio specification, and the first control information includes group information in relation to the group, and a second audio zone which is an area for recording therein music composed of audio signal produced under lossy compression; and recording onto the second audio zone a plurality of files each storing therein a signal of a single piece of music subjected to the lossy compression and second management information including second control information for allowing each file to be reproduced, wherein each piece of music stored in each file corresponds to the music included in any one of the tracks in the first audio zone, the plurality of files are recorded in a group corresponding to the group in the first audio zone, and the second control information includes group information in relation to the group in the second audio zone; wherein the plurality of files recorded in the second audio zone each have storing therein a signal produced by applying each of a plurality of types of lossy compression each serving as the lossy compression to the music corresponding to each of the tracks in the first audio zone, the plurality of files being given with the same file name having an extension which is different from one another depending on each of the plurality of types of lossy compression.