=== modified file 'grub-core/disk/i386/pc/biosdisk.c'
--- grub-core/disk/i386/pc/biosdisk.c	2010-09-18 22:04:31 +0000
+++ grub-core/disk/i386/pc/biosdisk.c	2010-12-25 20:41:28 +0000
@@ -620,10 +620,19 @@
   grub_memset (cdrp, 0, sizeof (*cdrp));
   cdrp->size = sizeof (*cdrp);
   cdrp->media_type = 0xFF;
-  if ((! grub_biosdisk_get_cdinfo_int13_extensions (grub_boot_drive, cdrp)) &&
-      ((cdrp->media_type & GRUB_BIOSDISK_CDTYPE_MASK)
-       == GRUB_BIOSDISK_CDTYPE_NO_EMUL))
-    cd_drive = cdrp->drive_no;
+  {
+    int a;
+    a = grub_biosdisk_get_cdinfo_int13_extensions (grub_boot_drive, cdrp);
+    
+    if ((! a) && 0 &&
+	((cdrp->media_type & GRUB_BIOSDISK_CDTYPE_MASK)
+	 == GRUB_BIOSDISK_CDTYPE_NO_EMUL))
+      cd_drive = cdrp->drive_no;
+    grub_printf ("%d %x %x\n", a, cdrp->media_type, cdrp->drive_no);
+    grub_getkey ();
+    grub_getkey ();
+    grub_getkey ();
+  }
 
   grub_disk_dev_register (&grub_biosdisk_dev);
 }