diff -r 531b73491ac2 virt-install
--- a/virt-install	Wed Oct 10 14:24:48 2007 -0400
+++ b/virt-install	Wed Oct 17 16:50:23 2007 -0400
@@ -160,11 +160,18 @@ def get_fullvirt_cdrom(cdpath, location,
     while 1:
         cdpath = cli.prompt_for_input(_("What is the virtual CD image, CD device or install location?"), cdpath)
         try:
+            cddisk = virtinst.VirtualDisk(path=cdpath, 
+                                          transient=True,
+                                          device=virtinst.VirtualDisk.DEVICE_CDROM,
+                                          readOnly=True)
             guest.cdrom = cdpath
             break
         except ValueError, e:
             print _("ERROR: "), e
             cdpath = None
+
+    # Clear disk as we only used it for validation
+    cddisk = None
 
 ### Option parsing
 def check_before_store(option, opt_str, value, parser):
diff -r 531b73491ac2 virtinst/Guest.py
--- a/virtinst/Guest.py	Wed Oct 10 14:24:48 2007 -0400
+++ b/virtinst/Guest.py	Wed Oct 17 16:50:23 2007 -0400
@@ -50,11 +50,11 @@ class VirtualDisk:
        
         if self.path is not None:
             if __builtin__.type(self.path) is not __builtin__.type("string"):
-                raise ValueError, _("The disk path must be a string or None.")
+                raise ValueError, _("The %s path must be a string or None.") % device
             self.path = os.path.abspath(self.path)
 
             if self.path != None and os.path.isdir(self.path):
-                raise ValueError, _("The disk path must be a file or a device, not a directory")
+                raise ValueError, _("The %s path must be a file or a device, not a directory") % device
 
             if not os.path.exists(os.path.dirname(self.path)):
                 raise ValueError, _("The specified path's root directory must exist.")