Mario & Luigi: Dream Team's audio data is in a file named "SoundData.arc" Many of sites say *.arc files are Nintendo archive. Here are the specifications of these files. But "SoundData.arc" doesn't seem be a archive but rather an audio file as the 15.4 section of the specifications page says. If we open this file with a hex editor, we can see the header doesn't starts with "RARC" but with nothing. In the file, there is a sequence of "WAVE_0000 WAVE_0020 WAVE_0030 WAVE_1100 WAVE_1101 WAVE_1102...". There are a lot of "RedSpark" in the file. There are 52 times (like the 52 songs of the OST) "Loop StartLoop End". Can someone understand this file and maybe give solutions to open it ?