diff --git a/src/zutil/ByteUtil.java b/src/zutil/ByteUtil.java
index c934eef..6a1d807 100755
--- a/src/zutil/ByteUtil.java
+++ b/src/zutil/ByteUtil.java
@@ -24,6 +24,8 @@
 
 package zutil;
 
+import zutil.converter.Converter;
+
 /**
  * Utility functions for byte primitive type
  *
@@ -124,4 +126,54 @@ public class ByteUtil {
             throw new IllegalArgumentException("Invalid length argument: "+length+", allowed values: 1 to "+(index+1)+" for index "+index);
         return (byte) BYTE_MASK[index][length];
     }
+
+    /**
+     * Presents a binary array in HEX and ASCII
+     *
+     * @param       data     The source binary data to format
+     * @return A multiline String with human readable HEX and ASCII
+     */
+    public static String toFormattedString(byte[] data){
+        StringBuffer output = new StringBuffer();
+
+        //000  XX XX XX XX XX XX XX XX  '........'
+        int maxOffset = (""+data.length).length();
+        for(int offset=0; offset<data.length; offset+=8){
+            if(offset != 0)
+                output.append('\n');
+
+            // Offset
+            String offsetStr = ""+offset;
+            for(int i=offsetStr.length(); i<3 || i<maxOffset; ++i){
+                output.append('0');
+            }
+            output.append(offsetStr);
+            output.append("  ");
+
+            // HEX
+            for(int i=0; i<8; ++i){
+                if(offset+i < data.length)
+                    output.append(Converter.toHexString(data[offset+i]));
+                else
+                    output.append("  ");
+                output.append(' ');
+            }
+            output.append(' ');
+
+            // ACII
+            output.append('\'');
+            for(int i=0; i<8; ++i){
+                if(offset+i < data.length)
+                    if( 32 <= data[offset+i] && data[offset+i] <= 126 )
+                        output.append((char)data[offset+i]);
+                    else
+                        output.append('.');
+                else
+                    output.append(' ');
+            }
+            output.append('\'');
+        }
+
+        return output.toString();
+    }
 }
diff --git a/src/zutil/StringUtil.java b/src/zutil/StringUtil.java
index 75c2988..814b626 100755
--- a/src/zutil/StringUtil.java
+++ b/src/zutil/StringUtil.java
@@ -195,56 +195,6 @@ public class StringUtil {
 		return str;
 	}
 
-    /**
-     * Presents a binary array in HEX and ASCII
-     *
-     * @param       data     The source binary data to format
-     * @return A multiline String with human readable HEX and ASCII
-     */
-    public static String formatBytesToString(byte[] data){
-        StringBuffer output = new StringBuffer();
-
-        //000  XX XX XX XX XX XX XX XX  '........'
-        int maxOffset = (""+data.length).length();
-        for(int offset=0; offset<data.length; offset+=8){
-            if(offset != 0)
-                output.append('\n');
-
-            // Offset
-            String offsetStr = ""+offset;
-            for(int i=offsetStr.length(); i<3 || i<maxOffset; ++i){
-                output.append('0');
-            }
-            output.append(offsetStr);
-            output.append("  ");
-
-            // HEX
-            for(int i=0; i<8; ++i){
-                if(offset+i < data.length)
-                    output.append(Converter.toHexString(data[offset+i]));
-                else
-                    output.append("  ");
-                output.append(' ');
-            }
-            output.append(' ');
-
-            // ACII
-            output.append('\'');
-            for(int i=0; i<8; ++i){
-                if(offset+i < data.length)
-                    if( 32 <= data[offset+i] && data[offset+i] <= 126 )
-                        output.append((char)data[offset+i]);
-                    else
-                        output.append('.');
-                else
-                    output.append(' ');
-            }
-            output.append('\'');
-        }
-
-        return output.toString();
-    }
-
 
 	private static ArrayList<String> SPACES = new ArrayList<String>();
 	/**
diff --git a/src/zutil/converter/Converter.java b/src/zutil/converter/Converter.java
index 129ac41..2c855a2 100755
--- a/src/zutil/converter/Converter.java
+++ b/src/zutil/converter/Converter.java
@@ -73,7 +73,9 @@ public class Converter {
      */
 	public static byte[] toBytes(char[] arr){
         byte[] ret = new byte[arr.length];
-        System.arraycopy(arr, 0, ret, 0, arr.length);
+		for (int i=0; i<arr.length; ++i)
+			ret[i] = (byte) (arr[i] & 0xFF);
+        //System.arraycopy(arr, 0, ret, 0, arr.length); // does not work if char value is largen than 128
         return ret;
     }
 	
diff --git a/test/zutil/ByteUtilTest.java b/test/zutil/ByteUtilTest.java
index 2c28fad..fe4202e 100755
--- a/test/zutil/ByteUtilTest.java
+++ b/test/zutil/ByteUtilTest.java
@@ -74,4 +74,29 @@ public class ByteUtilTest {
         assertArrayEquals(new byte[]{0x22,0x11}, ByteUtil.getReverseByteOrder(new byte[]{0x11,0x22}));
         assertArrayEquals(new byte[]{0x44,0x33,0x22,0x11}, ByteUtil.getReverseByteOrder(new byte[]{0x11,0x22,0x33,0x44}));
     }
+
+
+    @Test
+    public void toFormattedStringTest(){
+        byte[] data = new byte[1];
+        assertEquals("000  00                       '.       '",
+                ByteUtil.toFormattedString(data));
+
+        data[0] = 65;
+        assertEquals("000  41                       'A       '",
+                ByteUtil.toFormattedString(data));
+
+        byte[] data2 = new byte[8];
+        data2[4] = 65;
+        assertEquals("000  00 00 00 00 41 00 00 00  '....A...'",
+                ByteUtil.toFormattedString(data2));
+
+        byte[] data3 = new byte[32];
+        data3[4] = 65;
+        assertEquals("000  00 00 00 00 41 00 00 00  '....A...'\n"+
+                        "008  00 00 00 00 00 00 00 00  '........'\n"+
+                        "016  00 00 00 00 00 00 00 00  '........'\n"+
+                        "024  00 00 00 00 00 00 00 00  '........'",
+                ByteUtil.toFormattedString(data3));
+    }
 }
diff --git a/test/zutil/StringUtilTest.java b/test/zutil/StringUtilTest.java
index 3b6cfe2..a060d15 100755
--- a/test/zutil/StringUtilTest.java
+++ b/test/zutil/StringUtilTest.java
@@ -25,7 +25,6 @@
 package zutil;
 
 import org.junit.Test;
-import zutil.StringUtil;
 
 import java.util.Arrays;
 
@@ -71,30 +70,6 @@ public class StringUtilTest {
 		assertEquals( "aa", 	StringUtil.trimQuotes("\"aa\"") );
 	}
 
-    @Test
-    public void formatBytesToStringTest(){
-        byte[] data = new byte[1];
-        assertEquals("000  00                       '.       '",
-                StringUtil.formatBytesToString(data));
-
-        data[0] = 65;
-        assertEquals("000  41                       'A       '",
-                StringUtil.formatBytesToString(data));
-
-        byte[] data2 = new byte[8];
-        data2[4] = 65;
-        assertEquals("000  00 00 00 00 41 00 00 00  '....A...'",
-                StringUtil.formatBytesToString(data2));
-
-        byte[] data3 = new byte[32];
-        data3[4] = 65;
-        assertEquals("000  00 00 00 00 41 00 00 00  '....A...'\n"+
-                     "008  00 00 00 00 00 00 00 00  '........'\n"+
-                     "016  00 00 00 00 00 00 00 00  '........'\n"+
-                     "024  00 00 00 00 00 00 00 00  '........'",
-                StringUtil.formatBytesToString(data3));
-    }
-
 	@Test
 	public void joinTest(){
 		assertEquals("", StringUtil.join(Arrays.asList(), ","));