diff --git a/Using-the-Soundtrack-Tool.md b/Using-the-Soundtrack-Tool.md
index c2e517a..086ac46 100644
--- a/Using-the-Soundtrack-Tool.md
+++ b/Using-the-Soundtrack-Tool.md
@@ -37,7 +37,7 @@ MuzHeyYa:
 ```
 
 ## Supported Tracker Formats (0.0.x)
-* Deflemask (DMF)
+* Deflemask (DMF version 27, exported by Deflemask version 1.1.8, does not use Ch. 3 Special mode)
 
 ## Supported Consoles/Drivers (0.0.x)
 * Echo Sound Engine (ESF) for Sega Megadrive
\ No newline at end of file