diff --git a/src/com/bytezone/diskbrowser/prodos/ProdosConstants.java b/src/com/bytezone/diskbrowser/prodos/ProdosConstants.java
index 922a4dd..806b988 100755
--- a/src/com/bytezone/diskbrowser/prodos/ProdosConstants.java
+++ b/src/com/bytezone/diskbrowser/prodos/ProdosConstants.java
@@ -67,7 +67,7 @@ public interface ProdosConstants
                                "$48", "$49", "$4A", "$4B", "$4C", "$4D", "$4E", "$4F", //
                                "GWP", "GSS", "GDB", "DRW", "GDP", "HMD", "EDU", "STN", //
                                "HLP", "COM", "CFG", "ANM", "MUM", "ENT", "DVU", "FIN", //
-                               "$60", "$61", "$62", "$63", "$64", "$65", "$66", "$67", //
+                               "$60", "$61", "$62", "$63", "$64", "$65", "NCF", "$67", //
                                "$68", "$69", "$6A", "BIO", "$6C", "TDR", "PRE", "HDV", //
                                "$70", "$71", "$72", "$73", "$74", "$75", "$76", "$77", //
                                "$78", "$79", "$7A", "$7B", "$7C", "$7D", "$7E", "$7F", //
diff --git a/src/com/bytezone/diskbrowser/prodos/write/DiskFullException.java b/src/com/bytezone/diskbrowser/prodos/write/DiskFullException.java
new file mode 100644
index 0000000..d86c360
--- /dev/null
+++ b/src/com/bytezone/diskbrowser/prodos/write/DiskFullException.java
@@ -0,0 +1,9 @@
+package com.bytezone.diskbrowser.prodos.write;
+
+public class DiskFullException extends Exception
+{
+  public DiskFullException (String message)
+  {
+    super (message);
+  }
+}
diff --git a/src/com/bytezone/diskbrowser/prodos/write/FileEntry.java b/src/com/bytezone/diskbrowser/prodos/write/FileEntry.java
index 3b60871..4e12d18 100644
--- a/src/com/bytezone/diskbrowser/prodos/write/FileEntry.java
+++ b/src/com/bytezone/diskbrowser/prodos/write/FileEntry.java
@@ -98,7 +98,7 @@ public class FileEntry
   }
 
   // ---------------------------------------------------------------------------------//
-  void writeFile (byte[] dataBuffer)
+  void writeFile (byte[] dataBuffer) throws DiskFullException
   // ---------------------------------------------------------------------------------//
   {
     this.eof = dataBuffer.length;
@@ -124,7 +124,7 @@ public class FileEntry
   }
 
   // ---------------------------------------------------------------------------------//
-  void writeRecord (int recordNo, byte[] dataBuffer)
+  void writeRecord (int recordNo, byte[] dataBuffer) throws DiskFullException
   // ---------------------------------------------------------------------------------//
   {
     assert auxType > 0;           // record length
@@ -160,7 +160,7 @@ public class FileEntry
   }
 
   // ---------------------------------------------------------------------------------//
-  int allocateNextBlock ()
+  int allocateNextBlock () throws DiskFullException
   // ---------------------------------------------------------------------------------//
   {
     blocksUsed++;
@@ -168,7 +168,7 @@ public class FileEntry
   }
 
   // ---------------------------------------------------------------------------------//
-  int getActualBlockNo (int logicalBlockNo)
+  int getActualBlockNo (int logicalBlockNo) throws DiskFullException
   // ---------------------------------------------------------------------------------//
   {
     int actualBlockNo = 0;
@@ -211,7 +211,7 @@ public class FileEntry
   }
 
   // ---------------------------------------------------------------------------------//
-  void map (int logicalBlockNo, int actualBlockNo)
+  void map (int logicalBlockNo, int actualBlockNo) throws DiskFullException
   // ---------------------------------------------------------------------------------//
   {
     if (logicalBlockNo > 255)                         // potential TREE
@@ -280,7 +280,7 @@ public class FileEntry
   }
 
   // ---------------------------------------------------------------------------------//
-  IndexBlock getIndexBlock (int position)
+  IndexBlock getIndexBlock (int position) throws DiskFullException
   // ---------------------------------------------------------------------------------//
   {
     IndexBlock indexBlock = masterIndexBlock.get (position);
diff --git a/src/com/bytezone/diskbrowser/prodos/write/ProdosDisk.java b/src/com/bytezone/diskbrowser/prodos/write/ProdosDisk.java
index a6a80b5..7f9ca5e 100644
--- a/src/com/bytezone/diskbrowser/prodos/write/ProdosDisk.java
+++ b/src/com/bytezone/diskbrowser/prodos/write/ProdosDisk.java
@@ -33,7 +33,7 @@ public class ProdosDisk
   private Map<Integer, SubdirectoryHeader> subdirectoryHeaders = new HashMap<> ();
 
   // ---------------------------------------------------------------------------------//
-  public ProdosDisk (int blocks, String volumeName) throws IOException
+  public ProdosDisk (int blocks, String volumeName) throws IOException, DiskFullException
   // ---------------------------------------------------------------------------------//
   {
     try (DataInputStream in = new DataInputStream (ProdosDisk.class.getClassLoader ()
@@ -63,7 +63,7 @@ public class ProdosDisk
   }
 
   // ---------------------------------------------------------------------------------//
-  void createCatalog (String volumeName)
+  void createCatalog (String volumeName) throws DiskFullException
   // ---------------------------------------------------------------------------------//
   {
     // reserve two boot blocks
@@ -112,7 +112,8 @@ public class ProdosDisk
   }
 
   // ---------------------------------------------------------------------------------//
-  public FileEntry addFile (String path, int type, byte[] dataBuffer)
+  public FileEntry addFile (String path, byte type, int auxType, LocalDateTime created,
+      LocalDateTime modified, byte[] dataBuffer) throws DiskFullException
   // ---------------------------------------------------------------------------------//
   {
     String[] subdirectories;
@@ -158,7 +159,10 @@ public class ProdosDisk
       fileEntry.version = 0x00;
       fileEntry.minVersion = 0x00;
       fileEntry.headerPointer = catalogBlockNo;
-      fileEntry.fileType = 4;                   // text
+      fileEntry.fileType = type;
+      fileEntry.auxType = auxType;
+      fileEntry.creationDate = created;
+      fileEntry.modifiedDate = modified;
 
       fileEntry.writeFile (dataBuffer);
 
@@ -221,7 +225,7 @@ public class ProdosDisk
   }
 
   // ---------------------------------------------------------------------------------//
-  private FileEntry createSubdirectory (int blockNo, String name)
+  private FileEntry createSubdirectory (int blockNo, String name) throws DiskFullException
   // ---------------------------------------------------------------------------------//
   {
     FileEntry fileEntry = findFreeSlot (blockNo);
@@ -281,10 +285,15 @@ public class ProdosDisk
   }
 
   // ---------------------------------------------------------------------------------//
-  int allocateNextBlock ()
+  int allocateNextBlock () throws DiskFullException
   // ---------------------------------------------------------------------------------//
   {
     int nextBlock = getFreeBlock ();
+    if (nextBlock < 0)
+    {
+      throw new DiskFullException ("Full");
+    }
+
     volumeBitMap.set (nextBlock, false);      // mark as unavailable
 
     return nextBlock;
@@ -298,7 +307,7 @@ public class ProdosDisk
   }
 
   // ---------------------------------------------------------------------------------//
-  private FileEntry findFreeSlot (int blockNo)
+  private FileEntry findFreeSlot (int blockNo) throws DiskFullException
   // ---------------------------------------------------------------------------------//
   {
     SubdirectoryHeader subdirectoryHeader = subdirectoryHeaders.get (blockNo);
diff --git a/src/com/bytezone/diskbrowser/utilities/DateTime.java b/src/com/bytezone/diskbrowser/utilities/DateTime.java
index fceb8ee..ef842bd 100644
--- a/src/com/bytezone/diskbrowser/utilities/DateTime.java
+++ b/src/com/bytezone/diskbrowser/utilities/DateTime.java
@@ -1,5 +1,7 @@
 package com.bytezone.diskbrowser.utilities;
 
+import java.time.LocalDateTime;
+
 // -----------------------------------------------------------------------------------//
 class DateTime
 // -----------------------------------------------------------------------------------//
@@ -39,6 +41,14 @@ class DateTime
         days[weekDay], day, months[month], year);
   }
 
+  // ---------------------------------------------------------------------------------//
+  public LocalDateTime getLocalDateTime ()
+  // ---------------------------------------------------------------------------------//
+  {
+    int adjustedYear = year + (year > 70 ? 1900 : 2000);
+    return LocalDateTime.of (adjustedYear, month + 1, day, hour, minute);
+  }
+
   // ---------------------------------------------------------------------------------//
   @Override
   public String toString ()
diff --git a/src/com/bytezone/diskbrowser/utilities/NuFX.java b/src/com/bytezone/diskbrowser/utilities/NuFX.java
index 488483c..b7d7c67 100644
--- a/src/com/bytezone/diskbrowser/utilities/NuFX.java
+++ b/src/com/bytezone/diskbrowser/utilities/NuFX.java
@@ -4,9 +4,11 @@ import java.io.File;
 import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
+import java.time.LocalDateTime;
 import java.util.ArrayList;
 import java.util.List;
 
+import com.bytezone.diskbrowser.prodos.write.DiskFullException;
 import com.bytezone.diskbrowser.prodos.write.ProdosDisk;
 
 // -----------------------------------------------------------------------------------//
@@ -55,11 +57,7 @@ public class NuFX
         dataPtr += thread.getCompressedEOF ();
 
         if (debug)
-        {
           System.out.printf ("Thread: %d%n%n%s%n%n", i, thread);
-          //          if (rec == 122 && thread.hasFile ())
-          //            System.out.println (HexFormatter.format (thread.getData ()));
-        }
       }
 
       if (record.hasFile ())
@@ -82,10 +80,9 @@ public class NuFX
     }
     else if (totalFiles > 0)
     {
-      //      listFiles ();
       try
       {
-        ProdosDisk disk = new ProdosDisk (1600, "DISKBROWSER");
+        ProdosDisk disk = new ProdosDisk (3200, "DISKBROWSER");
         int count = 0;
         for (Record record : records)
         {
@@ -93,15 +90,17 @@ public class NuFX
           {
             String fileName = record.getFileName ();
             int fileSize = record.getFileSize ();
-            int fileType = record.getFileType ();
+            byte fileType = (byte) record.getFileType ();
             int eof = record.getUncompressedSize ();
+            int auxType = record.getAuxType ();
+            LocalDateTime created = record.getCreated ();
+            LocalDateTime modified = record.getModified ();
             byte[] buffer = record.getData ();
-            System.out.printf ("%3d %-35s %,7d  %d  %,7d  %d%n", ++count, fileName,
-                fileSize, fileType, eof, buffer.length);
-            if (fileType == 4 && count > 10 && count < 16)
-            {
-              disk.addFile (fileName, fileType, buffer);
-            }
+
+            System.out.printf ("%3d %-35s %,7d  %02X  %,7d  %,7d  %,7d  %s  %s%n",
+                ++count, fileName, fileSize, fileType, eof, auxType, buffer.length,
+                created, modified);
+            disk.addFile (fileName, fileType, auxType, created, modified, buffer);
           }
         }
 
@@ -113,6 +112,10 @@ public class NuFX
       {
         e.printStackTrace ();
       }
+      catch (DiskFullException e)
+      {
+        e.printStackTrace ();
+      }
     }
 
     return null;
@@ -176,7 +179,7 @@ public class NuFX
   public static void main (String[] args) throws FileFormatException, IOException
   // ---------------------------------------------------------------------------------//
   {
-    File file = new File ("/Users/denismolony/Dropbox/Examples/SHK/Applenet20.shk");
+    File file = new File ("/Users/denismolony/Dropbox/Examples/SHK/DiversiCopy.3.1.shk");
 
     NuFX nufx = new NuFX (file.toPath ());
     System.out.println (nufx);
diff --git a/src/com/bytezone/diskbrowser/utilities/Record.java b/src/com/bytezone/diskbrowser/utilities/Record.java
index 1df3388..4de4238 100644
--- a/src/com/bytezone/diskbrowser/utilities/Record.java
+++ b/src/com/bytezone/diskbrowser/utilities/Record.java
@@ -1,5 +1,6 @@
 package com.bytezone.diskbrowser.utilities;
 
+import java.time.LocalDateTime;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -159,7 +160,12 @@ class Record
   {
     for (Thread thread : threads)
       if (thread.hasFileName ())
+      {
+        String fileName = thread.getFileName ();
+        if (separator != '/')
+          return fileName.replace (separator, '/');
         return thread.getFileName ();
+      }
 
     return "";
   }
@@ -171,6 +177,31 @@ class Record
     return fileType;
   }
 
+  // ---------------------------------------------------------------------------------//
+  int getAuxType ()
+  // ---------------------------------------------------------------------------------//
+  {
+    return auxType;
+  }
+
+  // ---------------------------------------------------------------------------------//
+  LocalDateTime getCreated ()
+  // ---------------------------------------------------------------------------------//
+  {
+    if (created == null)
+      return null;
+    return created.getLocalDateTime ();
+  }
+
+  // ---------------------------------------------------------------------------------//
+  LocalDateTime getModified ()
+  // ---------------------------------------------------------------------------------//
+  {
+    if (modified == null)
+      return null;
+    return modified.getLocalDateTime ();
+  }
+
   // ---------------------------------------------------------------------------------//
   int getFileSize ()
   // ---------------------------------------------------------------------------------//
@@ -214,7 +245,7 @@ class Record
     bits = bits.substring (bits.length () - 8);
     String decode = Utility.matchFlags (access, accessChars);
 
-    text.append (String.format ("Header CRC ..... %,d  (%04X)%n", crc, crc));
+    text.append (String.format ("Header CRC ..... %,d  (%<04X)%n", crc));
     text.append (String.format ("Attributes ..... %d%n", attributes));
     text.append (String.format ("Version ........ %d%n", version));
     text.append (String.format ("Threads ........ %d%n", totThreads));
diff --git a/src/com/bytezone/diskbrowser/utilities/Utility.java b/src/com/bytezone/diskbrowser/utilities/Utility.java
index 2617871..f45343f 100644
--- a/src/com/bytezone/diskbrowser/utilities/Utility.java
+++ b/src/com/bytezone/diskbrowser/utilities/Utility.java
@@ -195,12 +195,33 @@ public class Utility
       int minute = buffer[offset + 2] & 0x3F;
       int hour = buffer[offset + 3] & 0x1F;
 
+      if (month < 1 || month > 12)
+      {
+        System.out.printf ("Invalid month: %d%n", month);
+        return null;
+      }
+
+      if (hour > 23)
+      {
+        System.out.printf ("Invalid hour: %d%n", hour);
+        return null;
+      }
+
       if (year < 70)
         year += 2000;
       else
         year += 1900;
-      return LocalDateTime.of (year, month - 1, day, hour, minute);
+
+      try
+      {
+        return LocalDateTime.of (year, month - 1, day, hour, minute);
+      }
+      catch (DateTimeException e)
+      {
+        System.out.println ("Bad date/time");
+      }
     }
+
     return null;
   }
 
@@ -249,14 +270,15 @@ public class Utility
   public static int readShort (byte[] buffer, int ptr)
   // ---------------------------------------------------------------------------------//
   {
-    return buffer[ptr] | buffer[ptr + 1] << 8;
+    return (buffer[ptr] & 0xFF) | (buffer[ptr + 1] & 0xFF) << 8;
   }
 
   // ---------------------------------------------------------------------------------//
   public static int readTriple (byte[] buffer, int ptr)
   // ---------------------------------------------------------------------------------//
   {
-    return buffer[ptr] | buffer[ptr + 1] << 8 | buffer[ptr + 2] << 16;
+    return (buffer[ptr] & 0xFF) | (buffer[ptr + 1] & 0xFF) << 8
+        | (buffer[ptr + 2] & 0xFF) << 16;
   }
 
   // ---------------------------------------------------------------------------------//