diff --git a/BlockDevice.cpp b/BlockDevice.cpp
index 99a61f2..be371cb 100644
--- a/BlockDevice.cpp
+++ b/BlockDevice.cpp
@@ -18,7 +18,7 @@ BlockDevice::~BlockDevice()
 {
 }
 
-BlockDevice::zeroBlock(unsigned block)
+void BlockDevice::zeroBlock(unsigned block)
 {
     uint8_t bp[512];
     std::memset(bp, 0, 512);
@@ -55,9 +55,15 @@ bool DiskImage::readOnly()
     throw Exception(__METHOD__ ": File not set."); 
 }
 
-
-
-
+unsigned DiskImage::blocks()
+{
+    #undef __METHOD__
+    #define __METHOD__ "DiskImage::blocks"
+    
+    if (_file) return _file->blocks();
+    
+    throw Exception(__METHOD__ ": File not set."); 
+}
 
 void DiskImage::read(unsigned block, void *bp)
 {
diff --git a/BlockDevice.h b/BlockDevice.h
index b35d899..8b8d23e 100644
--- a/BlockDevice.h
+++ b/BlockDevice.h
@@ -20,7 +20,7 @@ public:
     virtual bool readOnly() = 0;
     virtual void sync() = 0;
     
-    virtual unsigned blocks();
+    virtual unsigned blocks() = 0;
     
     void zeroBlock(unsigned block);
 };
@@ -37,7 +37,7 @@ public:
     virtual void sync();
     
     virtual bool readOnly();
-    
+    virtual unsigned blocks();
     
 protected:
 
diff --git a/DiskCopy42Image.cpp b/DiskCopy42Image.cpp
index 343b660..7f1169c 100644
--- a/DiskCopy42Image.cpp
+++ b/DiskCopy42Image.cpp
@@ -26,7 +26,7 @@ DiskCopy42Image::~DiskCopy42Image()
     if (_changed)
     {
         MappedFile *f = file();
-        void *data = file->fileData();
+        void *data = f->fileData();
         
         if (f)
         {
diff --git a/RawDevice.cpp b/RawDevice.cpp
index 4c83ed3..092a4ff 100644
--- a/RawDevice.cpp
+++ b/RawDevice.cpp
@@ -1,5 +1,5 @@
 
-#include <ioctl.h>
+#include <sys/ioctl.h>
 #include <fcntl.h>
 #include <sys/types.h>
 #include <sys/uio.h>
@@ -89,6 +89,8 @@ void RawDevice::devSize(int fd)
 
 #endif
 
+// TODO -- FreeBSD/NetBSD/OpenBSD
+
 RawDevice::RawDevice(const char *name, bool readOnly) :
 {
     // open read-only, verify if device is readable, and then try to upgrade to read/write?
@@ -133,7 +135,7 @@ void RawDevice::read(unsigned block, void *bp)
     
     // TODO -- EINTR?
     if (ok != 512)
-        throw Exception(__METHOD__ : ": Error reading block.", 
+        throw Exception(__METHOD__ ": Error reading block.", 
             ok < 0 : errno, 0);
     
     
diff --git a/RawDevice.h b/RawDevice.h
index b2f5bc7..521d21f 100644
--- a/RawDevice.h
+++ b/RawDevice.h
@@ -34,7 +34,7 @@ private:
     unsigned _blocks;
     
     unsigned _blockSize;
-}
+};
 
 
 #endif
diff --git a/UniversalDiskImage.cpp b/UniversalDiskImage.cpp
index 8b08773..87c6055 100644
--- a/UniversalDiskImage.cpp
+++ b/UniversalDiskImage.cpp
@@ -1,7 +1,7 @@
 #include "UniversalDiskImage.h"
 #include "MappedFile.h"
 #include "Buffer.h"
-#inluce "Endian.h"
+#include "Endian.h"
 
 using namespace ProFUSE;
 using namespace LittleEndian;
@@ -13,7 +13,7 @@ UniversalDiskImage::UniversalDiskImage(const char *name, bool readOnly) :
     const void *data = file()->fileData();
     
     // flags.  bit 31 = locked.
-    _flags = Read32(data, 0x10;
+    _flags = Read32(data, 0x10);
 }
 
 UniversalDiskImage::UniversalDiskImage(MappedFile *file) :
diff --git a/UniversalDiskImage.h b/UniversalDiskImage.h
index e26e18e..1bcac1b 100644
--- a/UniversalDiskImage.h
+++ b/UniversalDiskImage.h
@@ -3,6 +3,7 @@
 
 
 #include "BlockDevice.h"
+#include <stdint.h>
 
 namespace ProFUSE {
 
@@ -19,7 +20,7 @@ private:
     UniversalDiskImage(MappedFile *);
     static void Validate(MappedFile *);
     
-    uint32_t flags;
+    uint32_t _flags;
 };
 
 }