diff --git a/src/de/mas/wiiu/jnus/ExtractionService.java b/src/de/mas/wiiu/jnus/ExtractionService.java
index c1fe1ca..e3caef7 100644
--- a/src/de/mas/wiiu/jnus/ExtractionService.java
+++ b/src/de/mas/wiiu/jnus/ExtractionService.java
@@ -95,7 +95,7 @@ public final class ExtractionService {
 
     public void extractEncryptedContentFilesTo(List<Content> list, String outputFolder, boolean withHashes) throws IOException {
         Utils.createDir(outputFolder);
-        if (parallelizable) {
+        if (parallelizable && Settings.ALLOW_PARALLELISATION) {
             try {
                 CompletableFuture.allOf(list.stream().map((Content c) -> CompletableFuture.runAsync(() -> {
                     try {
@@ -105,7 +105,7 @@ public final class ExtractionService {
                     }
                 })).toArray(CompletableFuture[]::new)).get();
             } catch (InterruptedException | ExecutionException e) {
-                throw new IOException(e);
+                throw new RuntimeException(e);
             }
         } else {
             for (Content c : list) {
diff --git a/src/de/mas/wiiu/jnus/Settings.java b/src/de/mas/wiiu/jnus/Settings.java
index cc28e97..9b08869 100644
--- a/src/de/mas/wiiu/jnus/Settings.java
+++ b/src/de/mas/wiiu/jnus/Settings.java
@@ -29,6 +29,7 @@ public class Settings {
     public static final String WOOMY_METADATA_FILENAME = "metadata.xml";
     public static final String H3_EXTENTION = ".h3";
     public static final String USER_AGENT = "Mozilla/5.0 (Nintendo WiiU) AppleWebKit/536.28 (KHTML, like Gecko) NX/3.0.3.12.12 NintendoBrowser/3.0.0.9561.US";
+    public static final boolean ALLOW_PARALLELISATION = true;
 
     public static byte[] commonKey = new byte[0x10];
     public static int WIIU_DECRYPTED_AREA_OFFSET = 0x18000;