diff --git a/demo/demo-2ch.zoom b/demo/demo-2ch.zoom
deleted file mode 100644
index 45c1f96..0000000
Binary files a/demo/demo-2ch.zoom and /dev/null differ
diff --git a/demo/demo-offset1.zoom b/demo/demo-offset1.zoom
deleted file mode 100644
index 875fa1a..0000000
Binary files a/demo/demo-offset1.zoom and /dev/null differ
diff --git a/demo/demo-short1.zoom b/demo/demo-short1.zoom
deleted file mode 100644
index 7b8012e..0000000
Binary files a/demo/demo-short1.zoom and /dev/null differ
diff --git a/demo/demo1.zoom b/demo/demo1.zoom
index 626f095..c3d4426 100644
Binary files a/demo/demo1.zoom and b/demo/demo1.zoom differ
diff --git a/demo/demo2.zoom b/demo/demo2.zoom
index 1f99704..d147958 100644
Binary files a/demo/demo2.zoom and b/demo/demo2.zoom differ
diff --git a/demo/demo3.zoom b/demo/demo3.zoom
index dc13df0..85e903f 100644
Binary files a/demo/demo3.zoom and b/demo/demo3.zoom differ
diff --git a/demo/demo4.zoom b/demo/demo4.zoom
index 40e1061..c0191cf 100644
Binary files a/demo/demo4.zoom and b/demo/demo4.zoom differ
diff --git a/scope.cabal b/scope.cabal
index f9b0f18..2bb204a 100644
--- a/scope.cabal
+++ b/scope.cabal
@@ -50,9 +50,6 @@ Data-Files:
   demo/demo2.zoom
   demo/demo3.zoom
   demo/demo4.zoom
-  demo/demo-2ch.zoom
-  demo/demo-offset1.zoom
-  demo/demo-short1.zoom
 
 flag splitBase
   description: Use the split-up base package.