diff --git a/Server/Client.cs b/Server/Client.cs
index 5e385be..78abf58 100644
--- a/Server/Client.cs
+++ b/Server/Client.cs
@@ -123,7 +123,6 @@ namespace Server
                         Console.WriteLine($"Received json with identifier {identifier}:\n{Encoding.ASCII.GetString(payloadbytes)}");
                         break;
                 }
-                Array.Copy(message, 5, payloadbytes, 0, message.Length - 5);
                 dynamic json = JsonConvert.DeserializeObject(Encoding.ASCII.GetString(payloadbytes));
                 saveData.WriteDataJSON(Encoding.ASCII.GetString(payloadbytes));
 
@@ -131,7 +130,7 @@ namespace Server
             else if (DataParser.isRawData(message))
             {
                 Console.WriteLine(BitConverter.ToString(message));
-                saveData.WriteDataRAW(ByteArrayToString(message));
+                saveData.WriteDataRAW(message);
             }
 
 
diff --git a/Server/SaveData.cs b/Server/SaveData.cs
index 0286bde..ffaaf90 100644
--- a/Server/SaveData.cs
+++ b/Server/SaveData.cs
@@ -22,20 +22,33 @@ namespace Server
         /// <summary>
         ///  Every line is a new data entry
         /// </summary>
-       
+
         public void WriteDataJSON(string data)
         {
-            using (StreamWriter sw = File.AppendText(this.path + "/json"+filename+".txt"))
+            using (StreamWriter sw = File.AppendText(this.path + "/json" + filename + ".txt"))
             {
                 sw.WriteLine(data);
             }
         }
 
-        public void WriteDataRAW(string data)
+        public void WriteDataRAW(byte[] data)
         {
-            using (StreamWriter sw = File.AppendText(this.path + "/raw" + filename + ".txt"))
+            int length = 0;
+            try
             {
-                sw.WriteLine(data);
+                FileInfo fi = new FileInfo(this.path + "/raw" + filename + ".bin");
+                length = (int)fi.Length;
+            }
+            catch
+            {
+
+            }
+            using (BinaryWriter sw = new BinaryWriter(File.Open(this.path + "/raw" + filename + ".bin", FileMode.Create)))
+            {
+
+                Console.WriteLine("head position " + sw.Seek(length, SeekOrigin.End));
+                sw.Write(data);
+                sw.Flush();
             }
         }
     }