keys are case-sensitive, don't lowercase them

passport.py

@@ -1,6 +1,9 @@
 #!/usr/bin/env python3
 
-from passport import *
+from passport import eddimage, wozimage
+from passport import DefaultLogger, DebugLogger
+from passport import Crack, Verify, EDDToWoz
+import os.path
 import sys
 
 def usage(error_code):
@@ -32,7 +35,7 @@ ext = ext.lower()
 if ext == ".woz":
     reader = wozimage.WozReader
 elif ext == ".edd":
-    reader = wozimage.EDDReader
+    reader = eddimage.EDDReader
 else:
    print("unrecognized file type")
    usage(1)

passport/wozimage.py

@@ -441,17 +441,15 @@ class CommandEdit(BaseCommand):
         output = WozWriter(self.woz_image.info.get("creator", __displayname__))
         output.tmap = self.woz_image.tmap
         output.tracks = self.woz_image.tracks
-        output.info = self.woz_image.info
-        output.meta = self.woz_image.meta
+        output.info = self.woz_image.info.copy()
+        output.meta = self.woz_image.meta.copy()
         # add all new info fields
         for i in args.info or ():
             k, v = i.split(":", 1)
-            k = k.lower()
             output.info[k] = v
         # add all new metadata fields
         for m in args.meta or ():
             k, v = m.split(":", 1)
-            k = k.lower()
             v = v.split("|")
             if len(v) == 1:
                 v = v[0]