diff --git a/src/main/java/ch/spacebase/opennbt/stream/NBTInputStream.java b/src/main/java/ch/spacebase/opennbt/stream/NBTInputStream.java
index 90f4265..c30ff09 100644
--- a/src/main/java/ch/spacebase/opennbt/stream/NBTInputStream.java
+++ b/src/main/java/ch/spacebase/opennbt/stream/NBTInputStream.java
@@ -267,6 +267,7 @@ public final class NBTInputStream implements Closeable {
         	
         	return new ObjectTag(name, o);
         case NBTConstants.TYPE_SHORT_ARRAY:
+        	long time = System.currentTimeMillis();
             length = is.readInt();
             short[] shorts = new short[length];
             
@@ -274,6 +275,7 @@ public final class NBTInputStream implements Closeable {
             	shorts[i] = is.readShort();
             }
 
+            System.out.println("Took " + (System.currentTimeMillis() - time) + "ms to read a short array.");
             return new ShortArrayTag(name, shorts);
         case NBTConstants.TYPE_STRING_ARRAY:
         	length = is.readInt();
diff --git a/src/main/java/ch/spacebase/opennbt/tag/ListTag.java b/src/main/java/ch/spacebase/opennbt/tag/ListTag.java
index 6811b51..50d13dc 100644
--- a/src/main/java/ch/spacebase/opennbt/tag/ListTag.java
+++ b/src/main/java/ch/spacebase/opennbt/tag/ListTag.java
@@ -35,15 +35,11 @@ package ch.spacebase.opennbt.tag;
  */
 
 import java.util.ArrayList;
-import java.util.Collections;
 import java.util.Iterator;
 import java.util.List;
 
 import ch.spacebase.opennbt.NBTUtils;
 
-
-
-
 /**
  * The <code>TAG_List</code> tag.
  */
@@ -77,7 +73,7 @@ public final class ListTag<T extends Tag> extends Tag implements Iterable<T> {
 	public ListTag(String name, Class<T> type, List<T> value) {
 		super(name);
 		this.type = type;
-		this.value = Collections.unmodifiableList(value);
+		this.value = value;
 	}
 	
 	/**
@@ -90,7 +86,7 @@ public final class ListTag<T extends Tag> extends Tag implements Iterable<T> {
 	
 	@Override
 	public List<T> getValue() {
-		return value;
+		return new ArrayList<T>(value);
 	}
 	
 	public boolean add(T value) {