diff --git a/src/main/java/net/knarcraft/ffmpegconverter/Main.java b/src/main/java/net/knarcraft/ffmpegconverter/Main.java
index c902109..b96b164 100644
--- a/src/main/java/net/knarcraft/ffmpegconverter/Main.java
+++ b/src/main/java/net/knarcraft/ffmpegconverter/Main.java
@@ -107,15 +107,15 @@ class Main {
         OutputUtil.println("[Audio languages jpn,eng,ger,fre] [Subtitle languages eng,ger,fre] [Convert to stereo if " +
                 "necessary true/false] [Prevent signs&songs subtitles true/false]\nYour input: ");
         List<String> input = readInput(4);
-        String[] audioLang = new String[]{"jpn", "*"};
-        String[] subtitleLang = new String[]{"eng", "*"};
+        String[] audioLanguage = new String[]{"jpn", "0"};
+        String[] subtitleLanguage = new String[]{"eng", "0"};
         boolean toStereo = true;
         boolean preventSigns = true;
         if (input.size() > 0 && ListUtil.getListFromCommaSeparatedString(input.get(0)) != null) {
-            audioLang = ListUtil.getListFromCommaSeparatedString(input.get(0));
+            audioLanguage = ListUtil.getListFromCommaSeparatedString(input.get(0));
         }
         if (input.size() > 1 && ListUtil.getListFromCommaSeparatedString(input.get(1)) != null) {
-            subtitleLang = ListUtil.getListFromCommaSeparatedString(input.get(1));
+            subtitleLanguage = ListUtil.getListFromCommaSeparatedString(input.get(1));
         }
         if (input.size() > 2) {
             toStereo = Boolean.parseBoolean(input.get(2));
@@ -123,7 +123,7 @@ class Main {
         if (input.size() > 3) {
             preventSigns = Boolean.parseBoolean(input.get(3));
         }
-        converter = new AnimeConverter(FFPROBE_PATH, FFMPEG_PATH, audioLang, subtitleLang, toStereo, preventSigns);
+        converter = new AnimeConverter(FFPROBE_PATH, FFMPEG_PATH, audioLanguage, subtitleLanguage, toStereo, preventSigns);
     }
 
 
diff --git a/src/main/java/net/knarcraft/ffmpegconverter/converter/AbstractConverter.java b/src/main/java/net/knarcraft/ffmpegconverter/converter/AbstractConverter.java
index 5e11d39..a959db0 100644
--- a/src/main/java/net/knarcraft/ffmpegconverter/converter/AbstractConverter.java
+++ b/src/main/java/net/knarcraft/ffmpegconverter/converter/AbstractConverter.java
@@ -17,7 +17,7 @@ import java.util.List;
  * Implements all methods which can be useful for any implementation of a converter.
  */
 public abstract class AbstractConverter implements Converter {
-    final boolean DEBUG = false;
+    final boolean debug = false;
     private final String newExtension;
     String ffprobePath;
     String ffmpegPath;
@@ -29,6 +29,7 @@ public abstract class AbstractConverter implements Converter {
      */
     AbstractConverter(String newExtension) {
         this.newExtension = newExtension;
+        OutputUtil.setDebug(this.debug);
         try {
             audioFormats = FileUtil.readFileLines("audio_formats.txt");
             videoFormats = FileUtil.readFileLines("video_formats.txt");
@@ -96,8 +97,8 @@ public abstract class AbstractConverter implements Converter {
         for (String language : languages) {
             for (G stream : streams) {
                 String streamLanguage = stream.getLanguage();
-                if (language.equals("*") || (streamLanguage == null && language.equals("0")) ||
-                        (streamLanguage != null && streamLanguage.equals(language))) {
+                if (language.equals("*") || ((streamLanguage == null || streamLanguage.equals("und")) &&
+                        language.equals("0")) || (streamLanguage != null && streamLanguage.equals(language))) {
                     sorted.add(stream);
                 }
             }
diff --git a/src/main/java/net/knarcraft/ffmpegconverter/converter/AnimeConverter.java b/src/main/java/net/knarcraft/ffmpegconverter/converter/AnimeConverter.java
index af8158c..157079e 100644
--- a/src/main/java/net/knarcraft/ffmpegconverter/converter/AnimeConverter.java
+++ b/src/main/java/net/knarcraft/ffmpegconverter/converter/AnimeConverter.java
@@ -49,7 +49,7 @@ public class AnimeConverter extends AbstractConverter {
     @Override
     public String[] generateConversionCommand(String executable, File file, List<StreamObject> streams, String outFile) {
         List<String> command = FFMpegHelper.getFFMpegWebVideoCommand(executable, file.getName());
-        if (this.DEBUG) {
+        if (this.debug) {
             FFMpegHelper.addDebugArguments(command, 50, 120);
         }
 
diff --git a/src/main/java/net/knarcraft/ffmpegconverter/converter/AudioConverter.java b/src/main/java/net/knarcraft/ffmpegconverter/converter/AudioConverter.java
index b892f9a..b7c6916 100644
--- a/src/main/java/net/knarcraft/ffmpegconverter/converter/AudioConverter.java
+++ b/src/main/java/net/knarcraft/ffmpegconverter/converter/AudioConverter.java
@@ -29,7 +29,7 @@ public class AudioConverter extends AbstractConverter {
     @Override
     public String[] generateConversionCommand(String executable, File file, List<StreamObject> streams, String outFile) {
         List<String> command = FFMpegHelper.getFFMpegGeneralFileCommand(executable, file.getName());
-        if (this.DEBUG) {
+        if (this.debug) {
             FFMpegHelper.addDebugArguments(command, 50, 120);
         }
 
diff --git a/src/main/java/net/knarcraft/ffmpegconverter/converter/VideoConverter.java b/src/main/java/net/knarcraft/ffmpegconverter/converter/VideoConverter.java
index ce12242..d3b7120 100644
--- a/src/main/java/net/knarcraft/ffmpegconverter/converter/VideoConverter.java
+++ b/src/main/java/net/knarcraft/ffmpegconverter/converter/VideoConverter.java
@@ -31,7 +31,7 @@ public class VideoConverter extends AbstractConverter {
     @Override
     public String[] generateConversionCommand(String executable, File file, List<StreamObject> streams, String outFile) {
         List<String> command = FFMpegHelper.getFFMpegGeneralFileCommand(executable, file.getName());
-        if (this.DEBUG) {
+        if (this.debug) {
             FFMpegHelper.addDebugArguments(command, 50, 120);
         }
 
diff --git a/src/main/java/net/knarcraft/ffmpegconverter/utility/FFMpegHelper.java b/src/main/java/net/knarcraft/ffmpegconverter/utility/FFMpegHelper.java
index e6c3eaf..d738998 100644
--- a/src/main/java/net/knarcraft/ffmpegconverter/utility/FFMpegHelper.java
+++ b/src/main/java/net/knarcraft/ffmpegconverter/utility/FFMpegHelper.java
@@ -111,8 +111,9 @@ public final class FFMpegHelper {
             String read = readProcess(processReader, spacer);
             if (!read.equals("")) {
                 if (write) {
-                    OutputUtil.print(read);
+                    OutputUtil.println(read);
                 } else {
+                    OutputUtil.printDebug(read);
                     output.append(read);
                 }
             }