diff --git a/ndn-cpp/data.cpp b/ndn-cpp/data.cpp
index 68b4779..629ff37 100644
--- a/ndn-cpp/data.cpp
+++ b/ndn-cpp/data.cpp
@@ -72,7 +72,7 @@
   
   dataStruct.contentLength = content_.size();
   if (content_.size() > 0)
-    dataStruct.content = (unsigned char *)&content_[0];
+    dataStruct.content = (unsigned char*)content_.buf();
   else
     dataStruct.content = 0;
 }
@@ -82,7 +82,7 @@
   signature_.set(dataStruct.signature);
   name_.set(dataStruct.name);
   metaInfo_.set(dataStruct.metaInfo);
-  setVector(content_, dataStruct.content, dataStruct.contentLength);
+  content_ = Blob(dataStruct.content, dataStruct.contentLength);
 }
 
 }
diff --git a/ndn-cpp/data.hpp b/ndn-cpp/data.hpp
index 28d753a..e1ad290 100644
--- a/ndn-cpp/data.hpp
+++ b/ndn-cpp/data.hpp
@@ -187,8 +187,7 @@
   const MetaInfo& getMetaInfo() const { return metaInfo_; }
   MetaInfo& getMetaInfo() { return metaInfo_; }
   
-  const std::vector<unsigned char>& getContent() const { return content_; }
-  std::vector<unsigned char>& getContent() { return content_; }
+  const std::vector<unsigned char>& getContent() const { return (*content_); }
 
   void setSignature(const Signature& signature) { signature_ = signature; }
   
@@ -196,17 +195,21 @@
   
   void setMetainfo(const MetaInfo& metaInfo) { metaInfo_ = metaInfo; }
 
+  /**
+   * Set the content to a copy of the data in the vector.
+   * @param content A vector whose contents are copied.
+   */
   void setContent(const std::vector<unsigned char>& content) { content_ = content; }
   void setContent(const unsigned char *content, unsigned int contentLength) 
   { 
-    setVector(content_, content, contentLength); 
+    content_ = Blob(content, contentLength); 
   }
     
 private:
   Signature signature_;
   Name name_;
   MetaInfo metaInfo_;
-  std::vector<unsigned char> content_;
+  Blob content_;
 };
   
 }