diff --git a/Documentation/Multimedia/Audio/Voicebank/Vocaloid/DDBVocaloidVoicebankDataFormat.txt b/Documentation/Multimedia/Audio/Voicebank/Vocaloid/DDBVocaloidVoicebankDataFormat.txt
new file mode 100644
index 00000000..f4cc7afe
--- /dev/null
+++ b/Documentation/Multimedia/Audio/Voicebank/Vocaloid/DDBVocaloidVoicebankDataFormat.txt
@@ -0,0 +1,6 @@
+FixedString[4]		Chunk ID
+UInt32				Total size of this chunk (including this field and Chunk ID field)
+					So, to get data size, TotalSize - 8 // 4 for chunk ID and 4 for size field
+Byte[]				chunk data
+
+Known chunk types:	"FRM2", "SND ", "ENV "