diff --git a/OSMDatastructure/ByteConverter.cs b/OSMDatastructure/ByteConverter.cs
index adb7216..de0833e 100644
--- a/OSMDatastructure/ByteConverter.cs
+++ b/OSMDatastructure/ByteConverter.cs
@@ -91,11 +91,13 @@ public static class ByteConverter
 
     public static byte[] GetBytes(OsmNode node)
     {
-        int totalBytes = 4 + 8; //size + Coordinates
+        int totalBytes = sizeof(int) + 8; //size + Coordinates
         HashSet<byte[]> edges = new();
         foreach (OsmEdge edge in node.edges)
         {
-            edges.Add(GetBytes(edge));
+            byte[] edgeBytes = GetBytes(edge);
+            edges.Add(edgeBytes);
+            totalBytes += edgeBytes.Length;
         }
 
         byte[] retBytes = new byte[totalBytes];
@@ -158,6 +160,7 @@ public static class ByteConverter
             tagsSize += tagBytes.Length;
         }
 
+        totalBytes += tagsSize;
         byte[] retBytes = new byte[totalBytes];
         Array.Copy(BitConverter.GetBytes(tagsSize), retBytes, 4);
         Array.Copy(GetBytes(edge.neighborCoordinates), 0, retBytes, sizeof(int), 8);
@@ -206,32 +209,37 @@ public static class ByteConverter
 
     public static byte[] GetBytes(KeyValuePair<OsmEdge.tagType, object> tag)
     {
-        byte[] objectBytes = Array.Empty<byte>();
-        if (tag.Value.GetType() == Type.GetType("string"))
+        byte[] objectBytes;
+        Type objectType = tag.Value.GetType();
+        if (objectType == Type.GetType("System.String"))
         {
             objectBytes = Encoding.ASCII.GetBytes((string)tag.Value);
         }
-        else if (tag.Value.GetType() == Type.GetType("bool"))
+        else if (objectType == Type.GetType("System.Boolean"))
         {
             objectBytes = BitConverter.GetBytes((bool)tag.Value);
         }
-        else if (tag.Value.GetType() == Type.GetType("int"))
+        else if (objectType == Type.GetType("System.Int32"))
         {
             objectBytes = BitConverter.GetBytes((int)tag.Value);
         }
-        else if (tag.Value.GetType() == Type.GetType("ulong"))
+        else if (objectType == Type.GetType("System.UInt64"))
         {
             objectBytes = BitConverter.GetBytes((ulong)tag.Value);
         }
-        else if (tag.Value.GetType() == Type.GetType("byte"))
+        else if (objectType == Type.GetType("System.Byte") || objectType.Name == "wayType")
         {
             objectBytes = new[] { (byte)tag.Value };
         }
+        else
+        {
+            throw new Exception(string.Format("Tag-Bytes object-Type: {0}", tag.Value.GetType()));
+        }
 
         byte[] retBytes = new byte[sizeof(int) + 1 + objectBytes.Length];
         Array.Copy(BitConverter.GetBytes(objectBytes.Length), 0, retBytes, 0, sizeof(int));
         retBytes[sizeof(int)] = (byte)tag.Key;
-        Array.Copy(objectBytes, 0, retBytes, sizeof(int) + 1, retBytes.Length);
+        Array.Copy(objectBytes, 0, retBytes, sizeof(int) + 1, objectBytes.Length);
         return retBytes;
     }