diff --git a/src/kc/data/tl7.js b/src/kc/data/tl7.js
index e3902e4..dd54a9c 100644
--- a/src/kc/data/tl7.js
+++ b/src/kc/data/tl7.js
@@ -2519,7 +2519,7 @@
         label: "mf-10"         
         type: "mf"         
         ref: "af-16"         
-        offset: 24573600         
+        offset: 24539552 //24573600         
         smpCnt: 53562412         
         trackId: 8         
         textStr: "midi/12.Mid"         
@@ -2589,7 +2589,7 @@
         label: "mf-11"         
         type: "mf"         
         ref: "af-16"         
-        offset: 97917600         
+        offset: 97871944 //97917600         
         smpCnt: 75425625         
         trackId: 8         
         textStr: "midi/13.Mid"