Fix various errata found from testing.
diff --git a/specification/json/sections/cper-firmware.json b/specification/json/sections/cper-firmware.json
index 2003f6e..1e9ea67 100644
--- a/specification/json/sections/cper-firmware.json
+++ b/specification/json/sections/cper-firmware.json
@@ -16,7 +16,7 @@
             "type": "integer"
         },
         "recordIDGUID": {
-            "type": "integer"
+            "type": "string"
         }
     }
 }
\ No newline at end of file