diff --git a/docs/random/hierarchy b/docs/random/hierarchy
index 113ebe0ae8..c4e03ba40e 100644
--- a/docs/random/hierarchy
+++ b/docs/random/hierarchy
@@ -7,7 +7,7 @@ better layout for it now. Some things to consider:
 
  - Elements have a klass member in the factory that is used to
    denote the functional type of the element. For example, the
-   mp3 encoder has a klass of Filter/Encoder/Audio
+   mp3 encoder has a klass of Codec/Encoder/Audio
    
  - The plugins can be grouped together by the media type they
    operate on or by the way they work (decoder/encoder)
diff --git a/docs/random/mimetypes b/docs/random/mimetypes
index 2421681d79..21a5ef7ace 100644
--- a/docs/random/mimetypes
+++ b/docs/random/mimetypes
@@ -103,7 +103,7 @@ Container formats
     Parser: asfdemux
     Formatter: asfmux
 
-5 - WAV (PCM)
+5 - WAV (Microsoft RIFF/WAV)
     MIME type: audio/x-wav
     Properties:
     Parser: wavparse