diff --git a/lib/config.cpp b/lib/config.cpp
index c6ce8f0a..debc51c8 100644
--- a/lib/config.cpp
+++ b/lib/config.cpp
@@ -39,7 +39,7 @@ std::string Util::Config::libver = PACKAGE_VERSION;
 
 Util::Config::Config() {
   //global options here
-  vals["debug"]["long"] = "Debug";
+  vals["debug"]["long"] = "debug";
   vals["debug"]["short"] = "g";
   vals["debug"]["arg"] = "integer";
   vals["debug"]["help"] = "The debug level at which messages need to be printed.";
diff --git a/lib/dtsc.h b/lib/dtsc.h
index c2e2f6ea..92501c49 100644
--- a/lib/dtsc.h
+++ b/lib/dtsc.h
@@ -193,7 +193,7 @@ namespace DTSC {
       char * getData();
       void toPrettyString(std::ostream & str, int indent = 0);
     private:
-      ///\brief Data storage for this packet.
+      ///\brief Data storage for this Part.
       ///
       /// - 3 bytes: MSB storage of the payload size of this packet in bytes.
       /// - 2 bytes: MSB storage of the duration of this packet in milliseconds.
@@ -219,7 +219,7 @@ namespace DTSC {
       char * getData();
       void toPrettyString(std::ostream & str, int indent = 0);
     private:
-      ///\brief Data storage for this packet.
+      ///\brief Data storage for this Key.
       ///
       /// - 5 bytes: MSB storage of the position of the first packet of this keyframe within the file.
       /// - 3 bytes: MSB storage of the duration of this keyframe.
@@ -243,6 +243,12 @@ namespace DTSC {
       char * getData();
       void toPrettyString(std::ostream & str, int indent = 0);
     private:
+      ///\Brief Data storage for this Fragment.
+      ///
+      /// - 4 bytes: duration (in milliseconds)
+      /// - 1 byte: length (amount of keyframes)
+      /// - 2 bytes: number of first keyframe in fragment
+      /// - 4 bytes: size of fragment in bytes
       char data[11];
   };