diff --git a/.gitignore b/.gitignore
index ec3fd83..f096505 100644
--- a/.gitignore
+++ b/.gitignore
@@ -19,3 +19,4 @@
 !test-input.*.zip
 !required.sh
 !meico.jar
+!expected-output.mpm
diff --git a/src/main/java/de/edirom/meigarage/meico/ConverterConfiguration.java b/src/main/java/de/edirom/meigarage/meico/ConverterConfiguration.java
index 99b0268..a4cfba2 100644
--- a/src/main/java/de/edirom/meigarage/meico/ConverterConfiguration.java
+++ b/src/main/java/de/edirom/meigarage/meico/ConverterConfiguration.java
@@ -30,6 +30,7 @@ public class ConverterConfiguration {
         CONVERSIONS.add(getConversionActionArgument(Conversion.MEI30TOMPM));
         CONVERSIONS.add(getConversionActionArgument(Conversion.MEI30TOMIDI));
         CONVERSIONS.add(getConversionActionArgument(Conversion.MIDIMEICOTOMP3));
+        CONVERSIONS.add(getConversionActionArgument(Conversion.MEI40TOMP3));
     }
 
     private static ConversionActionArguments getConversionActionArgument(Conversion format) {
diff --git a/src/test/java/de/edirom/meigarage/meico/MeicoConverterTest.java b/src/test/java/de/edirom/meigarage/meico/MeicoConverterTest.java
index e9c112e..04c7583 100644
--- a/src/test/java/de/edirom/meigarage/meico/MeicoConverterTest.java
+++ b/src/test/java/de/edirom/meigarage/meico/MeicoConverterTest.java
@@ -29,14 +29,23 @@ public void convert() throws IOException, ConverterException {
         InputStream is = new FileInputStream("src/test/resources/test-input.mei.zip");
         OutputStream os = new FileOutputStream("src/test/resources/test-output.mpm.zip");
         DataType inputType = new DataType("mei40", "text/xml");
+        //DataType inputType = new DataType("midi", "audio/x-midi");
         DataType outputType = new DataType("mpm", "text/xml");
+        //DataType outputType = new DataType("mp3", "audio/mp3");
         ConversionActionArguments conversionActionArguments = new ConversionActionArguments(inputType, outputType, null);
         String tempDir = "src/test/temp";
         converter.convert(is, os, conversionActionArguments, tempDir);
+        //assertNotNull(new File("src/test/resources/test-output.mp3.zip"));
         assertNotNull(new File("src/test/resources/test-output.mpm.zip"));
         InputStream isout = new FileInputStream("src/test/resources/test-output.mpm.zip");
         EGEConfigurationManager.getInstance().getStandardIOResolver().decompressStream(isout, new File("src/test/resources/test-output.mpm"));
-        assertNotEquals("", new String(Files.readAllBytes(Paths.get("src/test/resources/test-output.mpm/test2-input.mpm")), "UTF-8"));
+        //assertNotEquals("", new String(Files.readAllBytes(Paths.get("src/test/resources/test-output.mpm/test2-input.mpm")), "UTF-8"));
+        //assertArrayEquals("Binary files differ",
+        //        Files.readAllBytes(Paths.get("src/test/resources/expected-output.mp3")),
+        //        Files.readAllBytes(Paths.get("src/test/resources/test-output.mp3/test2-input_MEI export performance.mp3")));
+        assertEquals("The files differ!",
+                new String(Files.readAllBytes(Paths.get("src/test/resources/test-output.mpm/test2-input.mpm"))).replaceAll("uri=\"[\\s\\S]*?\"",""),
+                new String(Files.readAllBytes(Paths.get("src/test/resources/expected-output.mpm"))).replaceAll("uri=\"[\\s\\S]*?\"",""));
         is.close();
         os.close();
         isout.close();
diff --git a/src/test/resources/expected-output.mpm b/src/test/resources/expected-output.mpm
new file mode 100644
index 0000000..cda8a2d
--- /dev/null
+++ b/src/test/resources/expected-output.mpm
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<mpm xmlns="http://www.cemfi.de/mpm/ns/1.0">
+    <metadata>
+        <author>meico</author>
+        <comment>This MPM has been generated from 'test2-input.mei' using the meico MEI converter.</comment>
+        <relatedResources>
+            <resource uri="/media/data/Arbeit_NFDI4Culture/OxGarages/meico-converter/src/test/temp/88a67b4f-833c-45ca-b993-eb6d922b8475/test2-input.mei" type="mei"/>
+            <resource uri="/media/data/Arbeit_NFDI4Culture/OxGarages/meico-converter/src/test/temp/88a67b4f-833c-45ca-b993-eb6d922b8475/test2-input.msm" type="msm"/>
+        </relatedResources>
+    </metadata>
+    <performance name="MEI export performance" pulsesPerQuarter="720">
+        <global>
+            <header/>
+            <dated/>
+        </global>
+        <part name="" number="1" midi.channel="0" midi.port="0">
+            <header/>
+            <dated>
+                <tempoMap>
+                    <style date="0.0" name.ref="MEI export"/>
+                    <tempo date="0.0" bpm="92" beatLength="0.125"/>
+                </tempoMap>
+            </dated>
+        </part>
+    </performance>
+</mpm>