diff --git a/campatmo.py b/campatmo.py
index 6464d2a..47b2365 100755
--- a/campatmo.py
+++ b/campatmo.py
@@ -11,9 +11,8 @@ single_track_types = ["lines"]
 
 
 def load_files():
-    files = glob("samples/*.wav")
     type_names = glob("samples/*/")
-    type_files = {c.split("/")[1]: glob(c + "/*.wav") for c in type_names}
+    type_files = {c.split("/")[1]: glob(c + "/*.ogg") for c in type_names}
     return type_files
 
 
diff --git a/samples/background/1.mp3 b/samples/background/1.mp3
deleted file mode 100644
index 004f3d1..0000000
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diff --git a/samples/background/1.ogg b/samples/background/1.ogg
new file mode 100644
index 0000000..10fc3a3
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diff --git a/samples/background/2.mp3 b/samples/background/2.mp3
deleted file mode 100644
index a781375..0000000
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diff --git a/samples/background/2.ogg b/samples/background/2.ogg
new file mode 100644
index 0000000..f8b79e9
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