diff --git a/README.md b/README.md
index 5cc959ac5..5d15decb5 100644
--- a/README.md
+++ b/README.md
@@ -227,12 +227,15 @@ which means you can modify it, redistribute it or use it however you like.
 
 ## Video Format Options:
     -f, --format FORMAT              video format code, specify the order of
-                                     preference using slashes: "-f 22/17/18".
-                                     "-f mp4" and "-f flv" are also supported.
-                                     You can also use the special names "best",
-                                     "bestvideo", "bestaudio", "worst",
-                                     "worstvideo" and "worstaudio". By default,
-                                     youtube-dl will pick the best quality.
+                                     preference using slashes: -f 22/17/18 .  -f
+                                     mp4 , -f m4a and  -f flv  are also
+                                     supported. You can also use the special
+                                     names "best", "bestvideo", "bestaudio",
+                                     "worst", "worstvideo" and "worstaudio". By
+                                     default, youtube-dl will pick the best
+                                     quality. Use commas to download multiple
+                                     audio formats, such as  -f
+                                     136/137/mp4/bestvideo,140/m4a/bestaudio
     --all-formats                    download all available video formats
     --prefer-free-formats            prefer free video formats unless a specific
                                      one is requested
diff --git a/youtube_dl/version.py b/youtube_dl/version.py
index 23892a8bd..430509ba3 100644
--- a/youtube_dl/version.py
+++ b/youtube_dl/version.py
@@ -1,2 +1,2 @@
 
-__version__ = '2014.09.16.1'
+__version__ = '2014.09.18'