Ive changed Koi Pond_Normal.wav with my favorite song ... I use h2otool.. Here to Download H2otool file : http://sourceforge.net/projects/h2otool/files/h2otool/1.0/h2otool.1.0.zip/download Steps : 1. I convert aishiteru.mp3 to aishiteru.wav then changed its name to Koi Pond_Normal.wav 2. extract file music.H2O D:DownloadsCompressedh2o>h2otool exctract music.h2o d:downloadscompressedh2omusic 3. overide my file 4. build music H2O D:DownloadsCompressedh2o>h2otool build music.h2o d:downloadscompressedh2omusic 5. Overwrite the original files with new music.h2o that I created .. dont forget to backup the original file music.h2o after that I could hear that song in the main menu...