diff --git a/cobalt/dom/html_media_element.cc b/cobalt/dom/html_media_element.cc
index cc2c7b0567fb..add247eb09ce 100644
--- a/cobalt/dom/html_media_element.cc
+++ b/cobalt/dom/html_media_element.cc
@@ -913,6 +913,9 @@ void HTMLMediaElement::LoadResource(const GURL& initial_url,
       return;
     }
     media_source_url_ = url;
+
+    LOG(INFO) << "Attached MediaSource (0x" << media_source_.get()
+              << ") to HTMLMediaElement (0x" << this << ")";
   }
   // The resource fetch algorithm
   network_state_ = kNetworkLoading;
diff --git a/cobalt/dom/media_source.cc b/cobalt/dom/media_source.cc
index 0265e3f93be3..ce1b2e772023 100644
--- a/cobalt/dom/media_source.cc
+++ b/cobalt/dom/media_source.cc
@@ -285,6 +285,9 @@ scoped_refptr<SourceBuffer> MediaSource::AddSourceBuffer(
 
   DCHECK(source_buffer);
   source_buffers_->Add(source_buffer);
+  LOG(INFO) << "added SourceBuffer (0x" << source_buffer.get()
+            << ") to MediaSource (0x" << this << ") with type " << type
+            << " id = " << guid;
   return source_buffer;
 }
 
diff --git a/cobalt/media/base/sbplayer_pipeline.cc b/cobalt/media/base/sbplayer_pipeline.cc
index 0895be9b5df3..4d1998e016f7 100644
--- a/cobalt/media/base/sbplayer_pipeline.cc
+++ b/cobalt/media/base/sbplayer_pipeline.cc
@@ -702,6 +702,8 @@ void SbPlayerPipeline::OnDemuxerError(PipelineStatus error) {
     return;
   }
 
+  LOG(INFO) << "SbPlayerPipeline::OnDemuxerError() called with error " << error;
+
   if (error != ::media::PIPELINE_OK) {
     CallErrorCB(error, "Demuxer error.");
   }