diff --git a/DavexDiskImage.cpp b/DavexDiskImage.cpp
index ac8818b..f93e003 100644
--- a/DavexDiskImage.cpp
+++ b/DavexDiskImage.cpp
@@ -1,6 +1,7 @@
 #include "DavexDiskImage.h"
 #include "MappedFile.h"
 #include "Buffer.h"
+#include "Endian.h"
 
 #include <cerrno>
 #include <cstdlib>
@@ -10,6 +11,7 @@
 #include <cstdio>
 
 using namespace ProFUSE;
+using namespace LittleEndian;
 
 /*
  http://www.umich.edu/~archive/apple2/technotes/ftn/FTN.E0.8004
@@ -41,7 +43,7 @@ void DavexDiskImage::Validate(MappedFile *f)
 #define __METHOD__ "DavexDiskImage::Validate"
 
     size_t size = f->fileSize();
-    void * data = f->fileData();
+    const void * data = f->fileData();
     bool ok = false;
     unsigned blocks = (size / 512) - 1;
     
@@ -54,15 +56,15 @@ void DavexDiskImage::Validate(MappedFile *f)
             break;
         
         // file format.
-        if (f->read8(16) != 0)
+        if (Read8(data, 0x10) != 0)
             break;
         
         // total blocks
-        if (f->read32(33, LittleEndian) != blocks)
+        if (Read32(data, 33) != blocks)
             break;
         
         // file number -- must be 1
-        if (f->read8(64) != 1)
+        if (Read8(data, 64) != 1)
             break;
                     
         ok = true;
diff --git a/Directory.h b/Directory.h
index bf70cfe..1b317f8 100644
--- a/Directory.h
+++ b/Directory.h
@@ -87,7 +87,7 @@ protected:
 
     setIndex(unsigned index)
     {
-        _index = index;
+        _index = index;w
     }
 
     
diff --git a/DiskCopy42Image.cpp b/DiskCopy42Image.cpp
index 10f1d94..343b660 100644
--- a/DiskCopy42Image.cpp
+++ b/DiskCopy42Image.cpp
@@ -1,10 +1,12 @@
 #include "DiskCopy42Image.h"
 #include "MappedFile.h"
 #include "Buffer.h"
+#include "Endian.h"
 
-#include <stdio.h>
+#include <cstdio>
 
 using namespace ProFUSE;
+using namespace BigEndian;
 
 DiskCopy42Image::DiskCopy42Image(MappedFile *f) :
     DiskImage(f),
@@ -24,12 +26,14 @@ DiskCopy42Image::~DiskCopy42Image()
     if (_changed)
     {
         MappedFile *f = file();
+        void *data = file->fileData();
+        
         if (f)
         {
-            uint32_t cs = Checksum(f->offset() + (uint8_t *)f->fileData(), 
+            uint32_t cs = Checksum(f->offset() + (uint8_t *)data, 
                 f->blocks() * 512);
                 
-            f->write32(72, cs, BigEndian);
+            Write32(data, 72, cs);
             f->sync();
         }
         // TODO -- checksum
@@ -137,6 +141,7 @@ void DiskCopy42Image::Validate(MappedFile *file)
 {
     size_t bytes = 0;
     size_t size = file->fileSize();
+    const void *data = file->fileData();
     bool ok = false;
     uint32_t checksum;
     
@@ -144,26 +149,26 @@ void DiskCopy42Image::Validate(MappedFile *file)
         if (size < 84) break;
         
         // name must be < 64
-        if (file->read8(0) > 63) break;
+        if (Read8(data, 0) > 63) break;
         
-        if (file->read32(82, BigEndian) != 0x100)
+        if (Read32(data, 82) != 0x100)
             break;
         
         // bytes, not blocks.
-        bytes = file->read32(64, BigEndian);
+        bytes = Read32(data, 64);
         
         if (bytes % 512) break;
         
         if (size < 84 + bytes) break;
         
         // todo -- checksum.
-        checksum = file->read32(72, BigEndian);
+        checksum = Read32(data, 72);
         
         ok = true;
     } while (false);
     
     
-    uint32_t cs = Checksum(64 + (uint8_t *)file->fileData(), bytes);
+    uint32_t cs = Checksum(64 + (uint8_t *)data, bytes);
     
     if (cs != checksum)
     {
diff --git a/MappedFile.cpp b/MappedFile.cpp
index bbc6bd7..c54c5ec 100644
--- a/MappedFile.cpp
+++ b/MappedFile.cpp
@@ -218,103 +218,4 @@ void MappedFile::reset()
     _dosOrder = false;
 }
 
-/*
-uint8_t MappedFile::read8(size_t location) const
-{
-    // check for size?
-    uint8_t *map = (uint8_t *)_map;
-    
-    return map[location];
-}
-*/
 
-uint16_t MappedFile::read16(size_t location, int byteOrder) const
-{
-    // check for size?
-    uint8_t *map = (uint8_t *)_map;
-    
-    switch(byteOrder)
-    {
-    case LittleEndian:
-        return (map[location + 1] << 8) 
-            | (map[location]);
-    case BigEndian:
-        return (map[location] << 8) 
-            | (map[location+1]);
-    default:
-        return 0;    
-    }    
-}
-
-uint32_t MappedFile::read32(size_t location, int byteOrder) const
-{
-    // check for size?
-    uint8_t *map = (uint8_t *)_map;
-    
-    switch(byteOrder)
-    {
-    case LittleEndian:
-        return (map[location+3] << 24) 
-            | (map[location+2] << 16)
-            | (map[location+1] << 8)
-            | (map[location])
-            ;
-    case BigEndian:
-        return (map[location] << 24) 
-            | (map[location+1] << 16)
-            | (map[location+2] << 8)
-            | (map[location+3])
-            ;
-            
-    default:
-        return 0;    
-    }    
-}
-
-
-/*
-void MappedFile::write8(size_t location, uint8_t data)
-{
-    uint8_t *map = (uint8_t *)_map;
-    
-    map[location] = data;
-}
-*/
-
-void MappedFile::write16(size_t location, uint16_t data, int byteOrder)
-{
-    uint8_t *map = (uint8_t *)_map;
-    
-    switch(byteOrder)
-    {
-    case LittleEndian:
-        map[location] = data & 0xff;
-        map[location+1] = (data >> 8) & 0xff;
-        break;
-    case BigEndian:
-        map[location] = (data >> 8) & 0xff;
-        map[location+1] = data & 0xff;
-        break;
-    }
-}
-
-void MappedFile::write32(size_t location, uint32_t data, int byteOrder)
-{
-    uint8_t *map = (uint8_t *)_map;
-    
-    switch(byteOrder)
-    {
-    case LittleEndian:
-        map[location] = data & 0xff;
-        map[location+1] = (data >> 8) & 0xff;
-        map[location+2] = (data >> 16) & 0xff;
-        map[location+3] = (data >> 24) & 0xff;        
-        break;
-    case BigEndian:
-        map[location] = (data >> 24) & 0xff;
-        map[location+1] = (data >> 16) & 0xff;
-        map[location+2] = (data >> 8) & 0xff;
-        map[location+3] = data & 0xff;
-        break;
-    }    
-}