I ripped HDCD CD to wav files. It is 24bit wav files. Then, I used Batch Converter as "Uncompressed FLAC". But such FLAC files seems "Compressed". For example, 62.09MB WAV converted to "Uncompressed FLAC" 41.43MB (34% compressed). FLAC Reference libFlac 1.3.1. Please let me know the reason why.