diff --git a/taglib/mp4/mp4item.cpp b/taglib/mp4/mp4item.cpp
index d51a487c..876fac4d 100644
--- a/taglib/mp4/mp4item.cpp
+++ b/taglib/mp4/mp4item.cpp
@@ -43,6 +43,9 @@ public:
     bool m_bool;
     int m_int;
     IntPair m_intPair;
+    uchar m_byte;
+    uint m_uint;
+    long long m_longlong;
   };
   StringList m_stringList;
   MP4::CoverArtList m_coverArtList;
@@ -89,6 +92,24 @@ MP4::Item::Item(int value)
   d->m_int = value;
 }
 
+MP4::Item::Item(uchar value)
+{
+  d = new ItemPrivate;
+  d->m_byte = value;
+}
+
+MP4::Item::Item(uint value)
+{
+  d = new ItemPrivate;
+  d->m_uint = value;
+}
+
+MP4::Item::Item(long long value)
+{
+  d = new ItemPrivate;
+  d->m_longlong = value;
+}
+
 MP4::Item::Item(int value1, int value2)
 {
   d = new ItemPrivate;
@@ -120,6 +141,24 @@ MP4::Item::toInt() const
   return d->m_int;
 }
 
+uchar
+MP4::Item::toByte() const
+{
+  return d->m_byte;
+}
+
+TagLib::uint
+MP4::Item::toUInt() const
+{
+  return d->m_uint;
+}
+
+long long
+MP4::Item::toLongLong() const
+{
+  return d->m_longlong;
+}
+
 MP4::Item::IntPair
 MP4::Item::toIntPair() const
 {
diff --git a/taglib/mp4/mp4item.h b/taglib/mp4/mp4item.h
index 3158b4dd..243a0998 100644
--- a/taglib/mp4/mp4item.h
+++ b/taglib/mp4/mp4item.h
@@ -47,12 +47,18 @@ namespace TagLib {
       ~Item();
 
       Item(int value);
+      Item(uchar value);
+      Item(uint value);
+      Item(long long value);
       Item(bool value);
       Item(int first, int second);
       Item(const StringList &value);
       Item(const CoverArtList &value);
 
       int toInt() const;
+      uchar toByte() const;
+      uint toUInt() const;
+      long long toLongLong() const;
       bool toBool() const;
       IntPair toIntPair() const;
       StringList toStringList() const;
diff --git a/taglib/mp4/mp4tag.cpp b/taglib/mp4/mp4tag.cpp
index 4e2d0211..8d2283ab 100644
--- a/taglib/mp4/mp4tag.cpp
+++ b/taglib/mp4/mp4tag.cpp
@@ -71,12 +71,23 @@ MP4::Tag::Tag(TagLib::File *file, MP4::Atoms *atoms)
     else if(atom->name == "trkn" || atom->name == "disk") {
       parseIntPair(atom, file);
     }
-    else if(atom->name == "cpil" || atom->name == "pgap" || atom->name == "pcst") {
+    else if(atom->name == "cpil" || atom->name == "pgap" || atom->name == "pcst" ||
+            atom->name == "hdvd") {
       parseBool(atom, file);
     }
     else if(atom->name == "tmpo") {
       parseInt(atom, file);
     }
+    else if(atom->name == "tvsn" || atom->name == "tves" || atom->name == "cnID" ||
+            atom->name == "sfID" || atom->name == "atID" || atom->name == "geID") {
+      parseUInt(atom, file);
+    }
+    else if(atom->name == "plID") {
+      parseLongLong(atom, file);
+    }
+    else if(atom->name == "stik" || atom->name == "rtng" || atom->name == "akID") {
+      parseByte(atom, file);
+    }
     else if(atom->name == "gnre") {
       parseGnre(atom, file);
     }
@@ -140,6 +151,33 @@ MP4::Tag::parseInt(MP4::Atom *atom, TagLib::File *file)
   }
 }
 
+void
+MP4::Tag::parseUInt(MP4::Atom *atom, TagLib::File *file)
+{
+  ByteVectorList data = parseData(atom, file);
+  if(data.size()) {
+    d->items.insert(atom->name, data[0].toUInt());
+  }
+}
+
+void
+MP4::Tag::parseLongLong(MP4::Atom *atom, TagLib::File *file)
+{
+  ByteVectorList data = parseData(atom, file);
+  if(data.size()) {
+    d->items.insert(atom->name, data[0].toLongLong());
+  }
+}
+
+void
+MP4::Tag::parseByte(MP4::Atom *atom, TagLib::File *file)
+{
+  ByteVectorList data = parseData(atom, file);
+  if(data.size()) {
+    d->items.insert(atom->name, (uchar)data[0].at(0));
+  }
+}
+
 void
 MP4::Tag::parseGnre(MP4::Atom *atom, TagLib::File *file)
 {
@@ -265,6 +303,30 @@ MP4::Tag::renderInt(const ByteVector &name, MP4::Item &item)
   return renderData(name, 0x15, data);
 }
 
+ByteVector
+MP4::Tag::renderUInt(const ByteVector &name, MP4::Item &item)
+{
+  ByteVectorList data;
+  data.append(ByteVector::fromUInt(item.toUInt()));
+  return renderData(name, 0x15, data);
+}
+
+ByteVector
+MP4::Tag::renderLongLong(const ByteVector &name, MP4::Item &item)
+{
+  ByteVectorList data;
+  data.append(ByteVector::fromLongLong(item.toLongLong()));
+  return renderData(name, 0x15, data);
+}
+
+ByteVector
+MP4::Tag::renderByte(const ByteVector &name, MP4::Item &item)
+{
+  ByteVectorList data;
+  data.append(ByteVector(1, item.toByte()));
+  return renderData(name, 0x15, data);
+}
+
 ByteVector
 MP4::Tag::renderIntPair(const ByteVector &name, MP4::Item &item)
 {
@@ -342,12 +404,22 @@ MP4::Tag::save()
     else if(name == "disk") {
       data.append(renderIntPairNoTrailing(name.data(String::Latin1), i->second));
     }
-    else if(name == "cpil" || name == "pgap" || name == "pcst") {
+    else if(name == "cpil" || name == "pgap" || name == "pcst" || name == "hdvd") {
       data.append(renderBool(name.data(String::Latin1), i->second));
     }
     else if(name == "tmpo") {
       data.append(renderInt(name.data(String::Latin1), i->second));
     }
+    else if(name == "tvsn" || name == "tves" || name == "cnID" ||
+            name == "sfID" || name == "atID" || name == "geID") {
+      data.append(renderUInt(name.data(String::Latin1), i->second));
+    }
+    else if(name == "plID") {
+      data.append(renderLongLong(name.data(String::Latin1), i->second));
+    }
+    else if(name == "stik" || name == "rtng" || name == "akID") {
+      data.append(renderByte(name.data(String::Latin1), i->second));
+    }
     else if(name == "covr") {
       data.append(renderCovr(name.data(String::Latin1), i->second));
     }
diff --git a/taglib/mp4/mp4tag.h b/taglib/mp4/mp4tag.h
index 2c8b2df8..433edf8a 100644
--- a/taglib/mp4/mp4tag.h
+++ b/taglib/mp4/mp4tag.h
@@ -72,6 +72,9 @@ namespace TagLib {
         void parseText(Atom *atom, TagLib::File *file, int expectedFlags = 1);
         void parseFreeForm(Atom *atom, TagLib::File *file);
         void parseInt(Atom *atom, TagLib::File *file);
+        void parseByte(Atom *atom, TagLib::File *file);
+        void parseUInt(Atom *atom, TagLib::File *file);
+        void parseLongLong(Atom *atom, TagLib::File *file);
         void parseGnre(Atom *atom, TagLib::File *file);
         void parseIntPair(Atom *atom, TagLib::File *file);
         void parseBool(Atom *atom, TagLib::File *file);
@@ -84,6 +87,9 @@ namespace TagLib {
         TagLib::ByteVector renderFreeForm(const String &name, Item &item);
         TagLib::ByteVector renderBool(const ByteVector &name, Item &item);
         TagLib::ByteVector renderInt(const ByteVector &name, Item &item);
+        TagLib::ByteVector renderByte(const ByteVector &name, Item &item);
+        TagLib::ByteVector renderUInt(const ByteVector &name, Item &item);
+        TagLib::ByteVector renderLongLong(const ByteVector &name, Item &item);
         TagLib::ByteVector renderIntPair(const ByteVector &name, Item &item);
         TagLib::ByteVector renderIntPairNoTrailing(const ByteVector &name, Item &item);
         TagLib::ByteVector renderCovr(const ByteVector &name, Item &item);