diff --git a/packager/mpd/base/dash_iop_mpd_notifier.cc b/packager/mpd/base/dash_iop_mpd_notifier.cc
index f92664bd74..ccd44c6189 100644
--- a/packager/mpd/base/dash_iop_mpd_notifier.cc
+++ b/packager/mpd/base/dash_iop_mpd_notifier.cc
@@ -74,15 +74,8 @@ bool DashIopMpdNotifier::NotifyNewContainer(const MediaInfo& media_info,
     return false;
 
   base::AutoLock auto_lock(lock_);
-  std::string lang;
-  if (media_info.has_audio_info()) {
-    lang = media_info.audio_info().language();
-  } else if (media_info.has_text_info()) {
-    lang = media_info.text_info().language();
-  }
-
-  AdaptationSet* adaptation_set =
-      GetAdaptationSetForMediaInfo(media_info, content_type, lang);
+  const std::string key = GetAdaptationSetKey(media_info);
+  AdaptationSet* adaptation_set = GetAdaptationSetForMediaInfo(key, media_info);
   DCHECK(adaptation_set);
   if (media_info.has_text_info()) {
     // IOP requires all AdaptationSets to have (sub)segmentAlignment set to
@@ -100,7 +93,7 @@ bool DashIopMpdNotifier::NotifyNewContainer(const MediaInfo& media_info,
 
   representation_id_to_adaptation_set_[representation->id()] = adaptation_set;
 
-  SetGroupId(content_type, lang, adaptation_set);
+  SetGroupId(key, adaptation_set);
 
   *container_id = representation->id();
   DCHECK(!ContainsKey(representation_map_, representation->id()));
@@ -169,13 +162,11 @@ bool DashIopMpdNotifier::Flush() {
 }
 
 AdaptationSet* DashIopMpdNotifier::GetAdaptationSetForMediaInfo(
-    const MediaInfo& media_info,
-    ContentType content_type,
-    const std::string& language) {
-  std::list<AdaptationSet*>& adaptation_sets =
-      adaptation_set_list_map_[content_type][language];
+    const std::string& key,
+    const MediaInfo& media_info) {
+  std::list<AdaptationSet*>& adaptation_sets = adaptation_set_list_map_[key];
   if (adaptation_sets.empty())
-    return NewAdaptationSet(media_info, language, &adaptation_sets);
+    return NewAdaptationSet(media_info, &adaptation_sets);
 
   const bool has_protected_content = media_info.has_protected_content();
 
@@ -204,13 +195,12 @@ AdaptationSet* DashIopMpdNotifier::GetAdaptationSetForMediaInfo(
 
   // None of the adaptation sets match with the new content protection.
   // Need a new one.
-  return NewAdaptationSet(media_info, language, &adaptation_sets);
+  return NewAdaptationSet(media_info, &adaptation_sets);
 }
 
 // Get all the UUIDs of the AdaptationSet. If another AdaptationSet has the
 // same UUIDs then those should be groupable.
-void DashIopMpdNotifier::SetGroupId(ContentType type,
-                                    const std::string& language,
+void DashIopMpdNotifier::SetGroupId(const std::string& key,
                                     AdaptationSet* adaptation_set) {
   if (adaptation_set->Group() >= 0)  // @group already assigned.
     return;
@@ -230,7 +220,7 @@ void DashIopMpdNotifier::SetGroupId(ContentType type,
       GetUUIDs(protected_content_it->second);
 
   std::list<AdaptationSet*>& same_type_adapatation_sets =
-      adaptation_set_list_map_[type][language];
+      adaptation_set_list_map_[key];
   DCHECK(!same_type_adapatation_sets.empty())
       << "same_type_adapatation_sets should not be null, it should at least "
          "contain adaptation_set";
@@ -270,8 +260,8 @@ void DashIopMpdNotifier::SetGroupId(ContentType type,
 
 AdaptationSet* DashIopMpdNotifier::NewAdaptationSet(
     const MediaInfo& media_info,
-    const std::string& language,
     std::list<AdaptationSet*>* adaptation_sets) {
+  std::string language = GetLanguage(media_info);
   AdaptationSet* new_adaptation_set = mpd_builder_->AddAdaptationSet(language);
   if (media_info.has_protected_content()) {
     DCHECK(!ContainsKey(protected_content_map_, new_adaptation_set->id()));
diff --git a/packager/mpd/base/dash_iop_mpd_notifier.h b/packager/mpd/base/dash_iop_mpd_notifier.h
index d4dce450b8..4c534ae572 100644
--- a/packager/mpd/base/dash_iop_mpd_notifier.h
+++ b/packager/mpd/base/dash_iop_mpd_notifier.h
@@ -70,22 +70,17 @@ class DashIopMpdNotifier : public MpdNotifier {
   // This does not necessarily return a new AdaptationSet. If
   // media_info.protected_content completely matches with an existing
   // AdaptationSet, then it will return the pointer.
-  AdaptationSet* GetAdaptationSetForMediaInfo(const MediaInfo& media_info,
-                                              ContentType type,
-                                              const std::string& language);
+  AdaptationSet* GetAdaptationSetForMediaInfo(const std::string& key,
+                                              const MediaInfo& media_info);
 
   // Sets a group id for |adaptation_set| if applicable.
   // If a group ID is already assigned, then this returns immediately.
-  // |type| and |language| are the type and language of |adaptation_set|.
-  void SetGroupId(ContentType type,
-                  const std::string& language,
-                  AdaptationSet* adaptation_set);
+  void SetGroupId(const std::string& key, AdaptationSet* adaptation_set);
 
   // Helper function to get a new AdaptationSet; registers the values
   // to the fields (maps) of the instance.
   // If the media is encrypted, registers data to protected_content_map_.
   AdaptationSet* NewAdaptationSet(const MediaInfo& media_info,
-                                  const std::string& language,
                                   std::list<AdaptationSet*>* adaptation_sets);
 
   // Testing only method. Returns a pointer to MpdBuilder.
@@ -98,10 +93,7 @@ class DashIopMpdNotifier : public MpdNotifier {
     mpd_builder_ = mpd_builder.Pass();
   }
 
-  // [type][lang] = list<AdaptationSet>
-  // Note: lang can be empty, e.g. for video.
-  std::map<ContentType, std::map<std::string, std::list<AdaptationSet*> > >
-      adaptation_set_list_map_;
+  std::map<std::string, std::list<AdaptationSet*>> adaptation_set_list_map_;
   RepresentationMap representation_map_;
 
   // Used to check whether a Representation should be added to an AdaptationSet.
diff --git a/packager/mpd/base/dash_iop_mpd_notifier_unittest.cc b/packager/mpd/base/dash_iop_mpd_notifier_unittest.cc
index e1d7b6102d..8235b118f0 100644
--- a/packager/mpd/base/dash_iop_mpd_notifier_unittest.cc
+++ b/packager/mpd/base/dash_iop_mpd_notifier_unittest.cc
@@ -776,6 +776,102 @@ TEST_F(DashIopMpdNotifierTest, NotifyNewContainerAndSampleDurationNoMock) {
   EXPECT_TRUE(notifier.Flush());
 }
 
+// Don't put different audio languages or codecs in the same AdaptationSet.
+TEST_P(DashIopMpdNotifierTest, SplitAdaptationSetsByLanguageAndCodec) {
+  // MP4, English
+  const char kAudioContent1[] =
+      "audio_info {\n"
+      "  codec: 'mp4a.40.2'\n"
+      "  sampling_frequency: 44100\n"
+      "  time_scale: 1200\n"
+      "  num_channels: 2\n"
+      "  language: 'eng'\n"
+      "}\n"
+      "reference_time_scale: 50\n"
+      "container_type: CONTAINER_MP4\n"
+      "media_duration_seconds: 10.5\n";
+
+  // MP4, German
+  const char kAudioContent2[] =
+      "audio_info {\n"
+      "  codec: 'mp4a.40.2'\n"
+      "  sampling_frequency: 44100\n"
+      "  time_scale: 1200\n"
+      "  num_channels: 2\n"
+      "  language: 'ger'\n"
+      "}\n"
+      "reference_time_scale: 50\n"
+      "container_type: CONTAINER_MP4\n"
+      "media_duration_seconds: 10.5\n";
+
+  // WebM, German
+  const char kAudioContent3[] =
+      "audio_info {\n"
+      "  codec: 'vorbis'\n"
+      "  sampling_frequency: 44100\n"
+      "  time_scale: 1200\n"
+      "  num_channels: 2\n"
+      "  language: 'ger'\n"
+      "}\n"
+      "reference_time_scale: 50\n"
+      "container_type: CONTAINER_WEBM\n"
+      "media_duration_seconds: 10.5\n";
+
+  // WebM, German again
+  const char kAudioContent4[] =
+      "audio_info {\n"
+      "  codec: 'vorbis'\n"
+      "  sampling_frequency: 44100\n"
+      "  time_scale: 1200\n"
+      "  num_channels: 2\n"
+      "  language: 'ger'\n"
+      "}\n"
+      "reference_time_scale: 50\n"
+      "container_type: CONTAINER_WEBM\n"
+      "media_duration_seconds: 10.5\n";
+
+  DashIopMpdNotifier notifier(dash_profile(), empty_mpd_option_,
+                              empty_base_urls_, output_path_);
+  scoped_ptr<MockMpdBuilder> mock_mpd_builder(new MockMpdBuilder(mpd_type()));
+
+  scoped_ptr<MockAdaptationSet> adaptation_set1(new MockAdaptationSet(1));
+  scoped_ptr<MockAdaptationSet> adaptation_set2(new MockAdaptationSet(2));
+  scoped_ptr<MockAdaptationSet> adaptation_set3(new MockAdaptationSet(3));
+
+  scoped_ptr<MockRepresentation> representation1(new MockRepresentation(1));
+  scoped_ptr<MockRepresentation> representation2(new MockRepresentation(2));
+  scoped_ptr<MockRepresentation> representation3(new MockRepresentation(3));
+  scoped_ptr<MockRepresentation> representation4(new MockRepresentation(4));
+
+  // We expect three AdaptationSets.
+  EXPECT_CALL(*mock_mpd_builder, AddAdaptationSet(_))
+      .WillOnce(Return(adaptation_set1.get()))
+      .WillOnce(Return(adaptation_set2.get()))
+      .WillOnce(Return(adaptation_set3.get()));
+  // The first AdaptationSet should have Eng MP4, one Representation.
+  EXPECT_CALL(*adaptation_set1, AddRepresentation(_))
+      .WillOnce(Return(representation1.get()));
+  // The second AdaptationSet should have Ger MP4, one Representation.
+  EXPECT_CALL(*adaptation_set2, AddRepresentation(_))
+      .WillOnce(Return(representation2.get()));
+  // The third AdaptationSet should have Ger WebM, two Representations.
+  EXPECT_CALL(*adaptation_set3, AddRepresentation(_))
+      .WillOnce(Return(representation3.get()))
+      .WillOnce(Return(representation4.get()));
+
+  uint32_t unused_container_id;
+  SetMpdBuilder(&notifier, mock_mpd_builder.Pass());
+  EXPECT_TRUE(notifier.NotifyNewContainer(
+      ConvertToMediaInfo(kAudioContent1), &unused_container_id));
+  EXPECT_TRUE(notifier.NotifyNewContainer(
+      ConvertToMediaInfo(kAudioContent2), &unused_container_id));
+  EXPECT_TRUE(notifier.NotifyNewContainer(
+      ConvertToMediaInfo(kAudioContent3), &unused_container_id));
+  EXPECT_TRUE(notifier.NotifyNewContainer(
+      ConvertToMediaInfo(kAudioContent4), &unused_container_id));
+}
+
+
 INSTANTIATE_TEST_CASE_P(StaticAndDynamic,
                         DashIopMpdNotifierTest,
                         ::testing::Values(MpdBuilder::kStatic,
diff --git a/packager/mpd/base/mpd_utils.cc b/packager/mpd/base/mpd_utils.cc
index 893a262d00..99b576fc12 100644
--- a/packager/mpd/base/mpd_utils.cc
+++ b/packager/mpd/base/mpd_utils.cc
@@ -57,6 +57,16 @@ void RemoveDuplicateAttributes(
     attributes.erase("schemeIdUri");
 }
 
+std::string GetLanguage(const MediaInfo& media_info) {
+  std::string lang;
+  if (media_info.has_audio_info()) {
+    lang = media_info.audio_info().language();
+  } else if (media_info.has_text_info()) {
+    lang = media_info.text_info().language();
+  }
+  return lang;
+}
+
 std::string GetCodecs(const MediaInfo& media_info) {
   CHECK(OnlyOneTrue(media_info.has_video_info(), media_info.has_audio_info(),
                     media_info.has_text_info()));
@@ -86,6 +96,47 @@ std::string GetCodecs(const MediaInfo& media_info) {
   return "";
 }
 
+std::string GetBaseCodec(const MediaInfo& media_info) {
+  std::string codec;
+  if (media_info.has_video_info()) {
+    codec = media_info.video_info().codec();
+  } else if (media_info.has_audio_info()) {
+    codec = media_info.audio_info().codec();
+  } else if (media_info.has_text_info()) {
+    codec = media_info.text_info().format();
+  }
+  // Convert, for example, "mp4a.40.2" to simply "mp4a".
+  // "mp4a.40.2" and "mp4a.40.5" can exist in the same AdaptationSet.
+  size_t dot = codec.find('.');
+  if (dot != std::string::npos) {
+    codec.erase(dot);
+  }
+  return codec;
+}
+
+std::string GetAdaptationSetKey(const MediaInfo& media_info) {
+  std::string key;
+
+  if (media_info.has_video_info()) {
+    key.append("video:");
+  } else if (media_info.has_audio_info()) {
+    key.append("audio:");
+  } else if (media_info.has_text_info()) {
+    key.append(MediaInfo_TextInfo_TextType_Name(media_info.text_info().type()));
+    key.append(":");
+  } else {
+    key.append("unknown:");
+  }
+
+  key.append(MediaInfo_ContainerType_Name(media_info.container_type()));
+  key.append(":");
+  key.append(GetBaseCodec(media_info));
+  key.append(":");
+  key.append(GetLanguage(media_info));
+
+  return key;
+}
+
 std::string SecondsToXmlDuration(double seconds) {
   return "PT" + base::DoubleToString(seconds) + "S";
 }
diff --git a/packager/mpd/base/mpd_utils.h b/packager/mpd/base/mpd_utils.h
index 50d8268e5e..970e17730f 100644
--- a/packager/mpd/base/mpd_utils.h
+++ b/packager/mpd/base/mpd_utils.h
@@ -40,10 +40,20 @@ bool HasLiveOnlyFields(const MediaInfo& media_info);
 void RemoveDuplicateAttributes(
     ContentProtectionElement* content_protection_element);
 
+// Returns a language tag. May be blank for video.
+std::string GetLanguage(const MediaInfo& media_info);
+
 // Returns a 'codecs' string that has all the video and audio codecs joined with
 // comma.
 std::string GetCodecs(const MediaInfo& media_info);
 
+// Returns a codec string without variants. For example, "mp4a" instead of
+// "mp4a.40.2". May return a format for text streams.
+std::string GetBaseCodec(const MediaInfo& media_info);
+
+// Returns a key made from the characteristics that separate AdaptationSets.
+std::string GetAdaptationSetKey(const MediaInfo& media_info);
+
 std::string SecondsToXmlDuration(double seconds);
 
 // Tries to get "duration" attribute from |node|. On success |duration| is set.
diff --git a/packager/mpd/base/simple_mpd_notifier.cc b/packager/mpd/base/simple_mpd_notifier.cc
index 4049a33af6..a54e35f352 100644
--- a/packager/mpd/base/simple_mpd_notifier.cc
+++ b/packager/mpd/base/simple_mpd_notifier.cc
@@ -44,15 +44,12 @@ bool SimpleMpdNotifier::NotifyNewContainer(const MediaInfo& media_info,
     return false;
 
   base::AutoLock auto_lock(lock_);
+
   // TODO(kqyang): Consider adding a new method MpdBuilder::AddRepresentation.
   // Most of the codes here can be moved inside.
-  std::string lang;
-  if (media_info.has_audio_info()) {
-    lang = media_info.audio_info().language();
-  } else if (media_info.has_text_info()) {
-    lang = media_info.text_info().language();
-  }
-  AdaptationSet** adaptation_set = &adaptation_set_map_[content_type][lang];
+  std::string key = GetAdaptationSetKey(media_info);
+  std::string lang = GetLanguage(media_info);
+  AdaptationSet** adaptation_set = &adaptation_set_map_[key];
   if (*adaptation_set == NULL)
     *adaptation_set = mpd_builder_->AddAdaptationSet(lang);
 
diff --git a/packager/mpd/base/simple_mpd_notifier.h b/packager/mpd/base/simple_mpd_notifier.h
index 6eb8575c7e..d8cf2c6ce9 100644
--- a/packager/mpd/base/simple_mpd_notifier.h
+++ b/packager/mpd/base/simple_mpd_notifier.h
@@ -74,9 +74,7 @@ class SimpleMpdNotifier : public MpdNotifier {
   scoped_ptr<MpdBuilder> mpd_builder_;
   base::Lock lock_;
 
-  // [type][lang] = AdaptationSet
-  typedef std::map<ContentType, std::map<std::string, AdaptationSet*> >
-      AdaptationSetMap;
+  typedef std::map<std::string, AdaptationSet*> AdaptationSetMap;
   AdaptationSetMap adaptation_set_map_;
 
   typedef std::map<uint32_t, Representation*> RepresentationMap;
diff --git a/packager/mpd/base/simple_mpd_notifier_unittest.cc b/packager/mpd/base/simple_mpd_notifier_unittest.cc
index fa4deceb9a..e34b04c219 100644
--- a/packager/mpd/base/simple_mpd_notifier_unittest.cc
+++ b/packager/mpd/base/simple_mpd_notifier_unittest.cc
@@ -308,6 +308,101 @@ TEST_P(SimpleMpdNotifierTest, UpdateEncryption) {
       container_id, "myuuid", std::vector<uint8_t>(), kBogusNewPsshVector));
 }
 
+// Don't put different audio languages or codecs in the same AdaptationSet.
+TEST_P(SimpleMpdNotifierTest, SplitAdaptationSetsByLanguageAndCodec) {
+  // MP4, English
+  const char kAudioContent1[] =
+      "audio_info {\n"
+      "  codec: 'mp4a.40.2'\n"
+      "  sampling_frequency: 44100\n"
+      "  time_scale: 1200\n"
+      "  num_channels: 2\n"
+      "  language: 'eng'\n"
+      "}\n"
+      "reference_time_scale: 50\n"
+      "container_type: CONTAINER_MP4\n"
+      "media_duration_seconds: 10.5\n";
+
+  // MP4, German
+  const char kAudioContent2[] =
+      "audio_info {\n"
+      "  codec: 'mp4a.40.2'\n"
+      "  sampling_frequency: 44100\n"
+      "  time_scale: 1200\n"
+      "  num_channels: 2\n"
+      "  language: 'ger'\n"
+      "}\n"
+      "reference_time_scale: 50\n"
+      "container_type: CONTAINER_MP4\n"
+      "media_duration_seconds: 10.5\n";
+
+  // WebM, German
+  const char kAudioContent3[] =
+      "audio_info {\n"
+      "  codec: 'vorbis'\n"
+      "  sampling_frequency: 44100\n"
+      "  time_scale: 1200\n"
+      "  num_channels: 2\n"
+      "  language: 'ger'\n"
+      "}\n"
+      "reference_time_scale: 50\n"
+      "container_type: CONTAINER_WEBM\n"
+      "media_duration_seconds: 10.5\n";
+
+  // WebM, German again
+  const char kAudioContent4[] =
+      "audio_info {\n"
+      "  codec: 'vorbis'\n"
+      "  sampling_frequency: 44100\n"
+      "  time_scale: 1200\n"
+      "  num_channels: 2\n"
+      "  language: 'ger'\n"
+      "}\n"
+      "reference_time_scale: 50\n"
+      "container_type: CONTAINER_WEBM\n"
+      "media_duration_seconds: 10.5\n";
+
+  SimpleMpdNotifier notifier(kOnDemandProfile, empty_mpd_option_,
+                             empty_base_urls_, output_path_);
+  scoped_ptr<MockMpdBuilder> mock_mpd_builder(StaticMpdBuilderMock());
+
+  scoped_ptr<MockAdaptationSet> adaptation_set1(new MockAdaptationSet(1));
+  scoped_ptr<MockAdaptationSet> adaptation_set2(new MockAdaptationSet(2));
+  scoped_ptr<MockAdaptationSet> adaptation_set3(new MockAdaptationSet(3));
+
+  scoped_ptr<MockRepresentation> representation1(new MockRepresentation(1));
+  scoped_ptr<MockRepresentation> representation2(new MockRepresentation(2));
+  scoped_ptr<MockRepresentation> representation3(new MockRepresentation(3));
+  scoped_ptr<MockRepresentation> representation4(new MockRepresentation(4));
+
+  // We expect three AdaptationSets.
+  EXPECT_CALL(*mock_mpd_builder, AddAdaptationSet(_))
+      .WillOnce(Return(adaptation_set1.get()))
+      .WillOnce(Return(adaptation_set2.get()))
+      .WillOnce(Return(adaptation_set3.get()));
+  // The first AdaptationSet should have Eng MP4, one Representation.
+  EXPECT_CALL(*adaptation_set1, AddRepresentation(_))
+      .WillOnce(Return(representation1.get()));
+  // The second AdaptationSet should have Ger MP4, one Representation.
+  EXPECT_CALL(*adaptation_set2, AddRepresentation(_))
+      .WillOnce(Return(representation2.get()));
+  // The third AdaptationSet should have Ger WebM, two Representations.
+  EXPECT_CALL(*adaptation_set3, AddRepresentation(_))
+      .WillOnce(Return(representation3.get()))
+      .WillOnce(Return(representation4.get()));
+
+  uint32_t unused_container_id;
+  SetMpdBuilder(&notifier, mock_mpd_builder.Pass());
+  EXPECT_TRUE(notifier.NotifyNewContainer(
+      ConvertToMediaInfo(kAudioContent1), &unused_container_id));
+  EXPECT_TRUE(notifier.NotifyNewContainer(
+      ConvertToMediaInfo(kAudioContent2), &unused_container_id));
+  EXPECT_TRUE(notifier.NotifyNewContainer(
+      ConvertToMediaInfo(kAudioContent3), &unused_container_id));
+  EXPECT_TRUE(notifier.NotifyNewContainer(
+      ConvertToMediaInfo(kAudioContent4), &unused_container_id));
+}
+
 INSTANTIATE_TEST_CASE_P(StaticAndDynamic,
                         SimpleMpdNotifierTest,
                         ::testing::Values(MpdBuilder::kStatic,
diff --git a/packager/mpd/test/data/language_audio_media_info1.txt b/packager/mpd/test/data/language_audio_media_info1.txt
deleted file mode 100644
index 568d1c020a..0000000000
--- a/packager/mpd/test/data/language_audio_media_info1.txt
+++ /dev/null
@@ -1,20 +0,0 @@
-bandwidth: 400
-audio_info {
-  codec: "mp4a.40.2"
-  sampling_frequency: 44100
-  time_scale: 1200
-  num_channels: 2
-  language: "eng"
-}
-init_range {
-  begin: 0
-  end: 120
-}
-index_range {
-  begin: 121
-  end: 221
-}
-reference_time_scale: 50
-container_type: 1
-media_file_name: "test_output_file_name_audio_eng1.mp4"
-media_duration_seconds: 10.5
diff --git a/packager/mpd/test/data/language_audio_media_info2.txt b/packager/mpd/test/data/language_audio_media_info2.txt
deleted file mode 100644
index b59a7da75b..0000000000
--- a/packager/mpd/test/data/language_audio_media_info2.txt
+++ /dev/null
@@ -1,20 +0,0 @@
-bandwidth: 800
-audio_info {
-  codec: "mp4a.40.2"
-  sampling_frequency: 44100
-  time_scale: 1200
-  num_channels: 2
-  language: "eng"
-}
-init_range {
-  begin: 0
-  end: 120
-}
-index_range {
-  begin: 121
-  end: 221
-}
-reference_time_scale: 50
-container_type: 1
-media_file_name: "test_output_file_name_audio_eng2.mp4"
-media_duration_seconds: 10.5
diff --git a/packager/mpd/test/data/language_audio_media_info3.txt b/packager/mpd/test/data/language_audio_media_info3.txt
deleted file mode 100644
index 07563cd5ca..0000000000
--- a/packager/mpd/test/data/language_audio_media_info3.txt
+++ /dev/null
@@ -1,20 +0,0 @@
-bandwidth: 400
-audio_info {
-  codec: "mp4a.40.2"
-  sampling_frequency: 44100
-  time_scale: 1200
-  num_channels: 2
-  language: "ger"
-}
-init_range {
-  begin: 0
-  end: 120
-}
-index_range {
-  begin: 121
-  end: 221
-}
-reference_time_scale: 50
-container_type: 1
-media_file_name: "test_output_file_name_audio_ger1.mp4"
-media_duration_seconds: 10.5
diff --git a/packager/mpd/test/data/language_audio_media_info_expected_output.txt b/packager/mpd/test/data/language_audio_media_info_expected_output.txt
deleted file mode 100644
index 68dd6b8afc..0000000000
--- a/packager/mpd/test/data/language_audio_media_info_expected_output.txt
+++ /dev/null
@@ -1,38 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" minBufferTime="PT2S" type="static" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" mediaPresentationDuration="PT10.5S">
-  <Period>
-    <AdaptationSet id="0" width="720" height="480" frameRate="10/1" contentType="video" par="3:2">
-      <Representation id="3" bandwidth="7620" codecs="avc1.010101" mimeType="video/mp4" sar="1:1">
-        <BaseURL>test_output_file_name1.mp4</BaseURL>
-        <SegmentBase indexRange="121-221" timescale="1000">
-          <Initialization range="0-120"/>
-        </SegmentBase>
-      </Representation>
-    </AdaptationSet>
-    <AdaptationSet id="1" lang="en" contentType="audio">
-      <Representation id="0" bandwidth="400" codecs="mp4a.40.2" mimeType="audio/mp4" audioSamplingRate="44100">
-        <AudioChannelConfiguration schemeIdUri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"/>
-        <BaseURL>test_output_file_name_audio_eng1.mp4</BaseURL>
-        <SegmentBase indexRange="121-221" timescale="50">
-          <Initialization range="0-120"/>
-        </SegmentBase>
-      </Representation>
-      <Representation id="1" bandwidth="800" codecs="mp4a.40.2" mimeType="audio/mp4" audioSamplingRate="44100">
-        <AudioChannelConfiguration schemeIdUri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"/>
-        <BaseURL>test_output_file_name_audio_eng2.mp4</BaseURL>
-        <SegmentBase indexRange="121-221" timescale="50">
-          <Initialization range="0-120"/>
-        </SegmentBase>
-      </Representation>
-    </AdaptationSet>
-    <AdaptationSet id="2" lang="de" contentType="audio">
-      <Representation id="2" bandwidth="400" codecs="mp4a.40.2" mimeType="audio/mp4" audioSamplingRate="44100">
-        <AudioChannelConfiguration schemeIdUri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"/>
-        <BaseURL>test_output_file_name_audio_ger1.mp4</BaseURL>
-        <SegmentBase indexRange="121-221" timescale="50">
-          <Initialization range="0-120"/>
-        </SegmentBase>
-      </Representation>
-    </AdaptationSet>
-  </Period>
-</MPD>
diff --git a/packager/mpd/test/data/language_video_media_info1.txt b/packager/mpd/test/data/language_video_media_info1.txt
deleted file mode 100644
index 02477f06bc..0000000000
--- a/packager/mpd/test/data/language_video_media_info1.txt
+++ /dev/null
@@ -1,22 +0,0 @@
-bandwidth: 7620
-video_info {
-  codec: "avc1.010101"
-  width: 720
-  height: 480
-  time_scale: 10
-  frame_duration: 1
-  pixel_width: 1
-  pixel_height: 1
-}
-init_range {
-  begin: 0
-  end: 120
-}
-index_range {
-  begin: 121
-  end: 221
-}
-reference_time_scale: 1000
-container_type: 1
-media_file_name: "test_output_file_name1.mp4"
-media_duration_seconds: 10.5
diff --git a/packager/mpd/test/mpd_builder_test_helper.h b/packager/mpd/test/mpd_builder_test_helper.h
index b216704fd6..e2842ad6bb 100644
--- a/packager/mpd/test/mpd_builder_test_helper.h
+++ b/packager/mpd/test/mpd_builder_test_helper.h
@@ -23,14 +23,6 @@ const char kFileNameVideoMediaInfo1[] = "video_media_info1.txt";
 const char kFileNameVideoMediaInfo2[] = "video_media_info2.txt";
 const char kFileNameAudioMediaInfo1[] = "audio_media_info1.txt";
 const char kFileNameEncytpedAudioMediaInfo[] = "encrypted_audio_media_info.txt";
-const char kFileNameLanguageAudioMediaInfo1[] =
-    "language_audio_media_info1.txt";
-const char kFileNameLanguageAudioMediaInfo2[] =
-    "language_audio_media_info2.txt";
-const char kFileNameLanguageAudioMediaInfo3[] =
-    "language_audio_media_info3.txt";
-const char kFileNameLanguageVideoMediaInfo1[] =
-    "language_video_media_info1.txt";
 
 // These are the expected output files.
 const char kFileNameExpectedMpdOutputVideo1[] =
@@ -50,9 +42,6 @@ const char kFileNameExpectedMpdOutputEncryptedAudio[] =
 
 const char kFileNameExpectedMpdOutputDynamicNormal[] = "dynamic_normal_mpd.txt";
 
-const char kFileNameExpectedMpdOutputLanguageAudio[] =
-    "language_audio_media_info_expected_output.txt";
-
 // Returns the path to test data with |file_name|. Use constants above to get
 // path to the test files.
 base::FilePath GetTestDataFilePath(const std::string& file_name);