diff --git a/Source/Images/Build.cmd b/Source/Images/Build.cmd
index d603f8e0..5b9576df 100644
--- a/Source/Images/Build.cmd
+++ b/Source/Images/Build.cmd
@@ -52,9 +52,9 @@ call BuildDisk.cmd msxroms1 hd wbw_hd512 || exit /b
 call BuildDisk.cmd msxroms2 hd wbw_hd512 || exit /b
 call BuildDisk.cmd infocom hd wbw_hd512 || exit /b
 
-echo.
-echo Building Combo Disk (512 directory entry format) Image...
-copy /b ..\..\Binary\hd512_cpm22.img + ..\..\Binary\hd512_zsdos.img + ..\..\Binary\hd512_nzcom.img + ..\..\Binary\hd512_cpm3.img + ..\..\Binary\hd512_zpm3.img + ..\..\Binary\hd512_ws4.img ..\..\Binary\hd512_combo.img || exit /b
+:: echo.
+:: echo Building Combo Disk (512 directory entry format) Image...
+:: copy /b ..\..\Binary\hd512_cpm22.img + ..\..\Binary\hd512_zsdos.img + ..\..\Binary\hd512_nzcom.img + ..\..\Binary\hd512_cpm3.img + ..\..\Binary\hd512_zpm3.img + ..\..\Binary\hd512_ws4.img ..\..\Binary\hd512_combo.img || exit /b
 
 echo.
 echo Building Hard Disk Images (1024 directory entry format)...
@@ -85,7 +85,8 @@ if exist ..\BPBIOS\bp*.rel call BuildDisk.cmd bp hd wbw_hd1k ..\zsdos\zsys_wbw.s
 
 copy hd1k_prefix.dat ..\..\Binary\ || exit /b
 
-echo.
-echo Building Combo Disk (1024 directory entry format) Image...
-copy /b hd1k_prefix.dat + ..\..\Binary\hd1k_cpm22.img + ..\..\Binary\hd1k_zsdos.img + ..\..\Binary\hd1k_nzcom.img + ..\..\Binary\hd1k_cpm3.img + ..\..\Binary\hd1k_zpm3.img + ..\..\Binary\hd1k_ws4.img ..\..\Binary\hd1k_combo.img || exit /b
+:: echo.
+:: echo Building Combo Disk (1024 directory entry format) Image...
+:: copy /b hd1k_prefix.dat + ..\..\Binary\hd1k_cpm22.img + ..\..\Binary\hd1k_zsdos.img + ..\..\Binary\hd1k_nzcom.img + ..\..\Binary\hd1k_cpm3.img + ..\..\Binary\hd1k_zpm3.img + ..\..\Binary\hd1k_ws4.img ..\..\Binary\hd1k_combo.img || exit /b
 
+call BuildImg.cmd || exit /b
diff --git a/Source/Images/BuildImg.cmd b/Source/Images/BuildImg.cmd
new file mode 100644
index 00000000..7931c5b9
--- /dev/null
+++ b/Source/Images/BuildImg.cmd
@@ -0,0 +1,6 @@
+@echo off
+setlocal
+
+for %%f in (*.def) do (
+  PowerShell -ExecutionPolicy Unrestricted .\BuildImg.ps1 %%~nf || exit /b
+)
diff --git a/Source/Images/BuildImg.ps1 b/Source/Images/BuildImg.ps1
new file mode 100644
index 00000000..062ab03b
--- /dev/null
+++ b/Source/Images/BuildImg.ps1
@@ -0,0 +1,66 @@
+param([string]$Image)
+
+# If a PowerShell exception occurs, just stop the script immediately.
+$ErrorAction = 'Stop'
+
+$DefFile = $Image + ".def"
+
+$ImgFile = "..\..\Binary\hd1k_" + $Image + ".img"
+
+
+
+
+$SliceList = @()
+
+ForEach ($Line in Get-Content $DefFile)
+{
+  $Line = $Line.Trim()
+  
+  if (($Line.Length -eq 0) -or ($Line[0] -eq "#"))
+  {
+    continue    
+  }
+  
+  $SliceList += $Line
+}
+
+function CreateImageFile {
+  param (
+    [string]$Format = ""	# hd1k or hd512
+  )
+
+  $ImgFile = "..\..\Binary\" + $Format + "_" + $Image + ".img"
+  
+  $FileList = ""
+  
+  "Generating $ImgFile using $DefFile..."
+  
+  ForEach ($Slice in $SliceList)
+  {
+    $File = "..\..\Binary\" + $Format + "_" + $Slice + ".img"
+    
+    if (!(Test-Path $File))
+    {
+      "Slice input file """ + $File + """ not found!!!"
+      exit 1
+    }
+    
+    if ($FileList.Length -gt 0)
+    {
+      $FileList += "+"
+    }
+  
+    $FileList += $File
+  }
+
+  if ($Format -eq "hd1k")
+  {
+    $FileList = "hd1k_prefix.dat+" + $FileList
+  }
+  cmd.exe /c copy /b $FileList $ImgFile
+}
+
+CreateImageFile "hd512"
+CreateImageFile "hd1k"
+
+exit 0
diff --git a/Source/Images/Makefile b/Source/Images/Makefile
index 09ef606e..abfe97d7 100644
--- a/Source/Images/Makefile
+++ b/Source/Images/Makefile
@@ -31,8 +31,16 @@ HD512PREFIX =
 HD1KPREFIX = hd1k_prefix.dat
 
 OBJECTS = $(FDIMGS)
-OBJECTS += $(HD512IMGS) $(HD512XIMGS) hd512_combo.img $(HD512PREFIX)
-OBJECTS += $(HD1KIMGS) $(HD1KXIMGS) hd1k_combo.img $(HD1KPREFIX)
+OBJECTS += $(HD512IMGS) $(HD512XIMGS) $(HD512PREFIX)
+OBJECTS += $(HD1KIMGS) $(HD1KXIMGS) $(HD1KPREFIX)
+
+# OBJECTS =
+
+TEMP = $(wildcard *.def)
+TEMP := $(addprefix hd512_,$(TEMP)) $(addprefix hd1k_,$(TEMP))
+TEMP := $(TEMP:.def=.img)
+OBJECTS += $(TEMP)
+
 
 OTHERS = blank144 blankhd512 blankhd1k *.cat
 
@@ -47,11 +55,41 @@ include $(TOOLS)/Makefile.inc
 
 DIFFPATH = $(DIFFTO)/Binary
 
-hd512_combo.img: $(HD512PREFIX) $(HD512IMGS)
-	cat $^ > $@
-
-hd1k_combo.img: $(HD1KPREFIX) $(HD1KIMGS)
-	cat $^ > $@
+# hd512_%.img: %.def $(HD512IMGS) $(HD512XIMGS)
+
+hd512_%.img: %.def
+	@echo "Making hd512 $^"; \
+	file_list=""; \
+	while read line; do \
+	  line=$$(echo "$${line}" | sed 's/^[[:space:]]*//;s/[[:space:]]*$$//') ; \
+	  if [ -z "$${line}" ]; then \
+	    continue;
+	  fi; \
+	  if [ "`expr substr "$$line" 1 1`" = "#" ]; then \
+	    continue; \
+	  fi; \
+	  file_list="$${file_list} hd512_$${line}.img"; \
+	done < $^ ; \
+	echo "$${file_list}"; \
+	cat $${file_list} > $@
+
+# hd1k_%.img: %.def $(HD1KIMGS) $(HD1KXIMGS)
+
+hd1k_%.img: %.def
+	@echo "Making hd1k $^"; \
+	file_list=""; \
+	while read line; do \
+	  line=$$(echo "$${line}" | sed 's/^[[:space:]]*//;s/[[:space:]]*$$//') ; \
+	  if [ -z "$${line}" ]; then \
+	    continue;
+	  fi; \
+	  if [ "`expr substr "$$line" 1 1`" = "#" ]; then \
+	    continue; \
+	  fi; \
+	  file_list="$${file_list} hd1k_$${line}.img"; \
+	done < $^ ; \
+	echo "$${file_list}"; \
+	cat $(HD1KPREFIX) $${file_list} > $@
 
 #
 # this somewhat impenetrable and fragile code is used to build each of the images
diff --git a/Source/Images/all.def.example b/Source/Images/all.def.example
new file mode 100644
index 00000000..2caed21b
--- /dev/null
+++ b/Source/Images/all.def.example
@@ -0,0 +1,25 @@
+# This image definition shows how to generate
+# an disk image containing all of the available
+# slices.
+
+aztecc
+bascomp
+blank
+cobol
+cowgol
+cpm22
+cpm3
+fortran
+games
+hitechc
+infocom
+msxroms1
+msxroms2
+nzcom
+qpm
+tpascal
+ws4
+z3plus
+z80asm
+zpm3
+zsdos
diff --git a/Source/Images/combo.def b/Source/Images/combo.def
new file mode 100644
index 00000000..2dc41f15
--- /dev/null
+++ b/Source/Images/combo.def
@@ -0,0 +1,8 @@
+# This is the ubiquituous Combo image for RomWBW
+
+cpm22
+zsdos
+nzcom
+cpm3
+zpm3
+ws4