diff --git a/demo/common/assets.js b/demo/common/assets.js
index 3f84a15c32..6a1544ed37 100644
--- a/demo/common/assets.js
+++ b/demo/common/assets.js
@@ -131,6 +131,9 @@ shakaAssets.Feature = {
   // Set if the asset has at least one containerless stream (AAC, etc).
   CONTAINERLESS: 'Containerless',
 
+  // Set if the asset requires Dolby Vision with MV-HEVC (for 3D) support.
+  DOLBY_VISION_3D: 'Dolby Vision 3D',
+
   // Set if the asset has at least one stream that is at least 720p.
   HIGH_DEFINITION: 'High definition',
   // Set if the asset has at least one stream that is at least 4k.
@@ -400,7 +403,7 @@ shakaAssets.testAssets = [
       /* manifestUri= */ 'https://storage.googleapis.com/shaka-demo-assets/sintel/dash.mpd',
       /* source= */ shakaAssets.Source.SHAKA)
       .addFeature(shakaAssets.Feature.DASH)
-      .addFeature(shakaAssets.Feature.HIGH_DEFINITION)
+      .addFeature(shakaAssets.Feature.ULTRA_HIGH_DEFINITION)
       .addFeature(shakaAssets.Feature.MP4)
       .addFeature(shakaAssets.Feature.SUBTITLES)
       .addFeature(shakaAssets.Feature.WEBM)
@@ -429,7 +432,7 @@ shakaAssets.testAssets = [
       /* manifestUri= */ 'https://storage.googleapis.com/shaka-demo-assets/sintel-webm-only/dash.mpd',
       /* source= */ shakaAssets.Source.SHAKA)
       .addFeature(shakaAssets.Feature.DASH)
-      .addFeature(shakaAssets.Feature.HIGH_DEFINITION)
+      .addFeature(shakaAssets.Feature.ULTRA_HIGH_DEFINITION)
       .addFeature(shakaAssets.Feature.SUBTITLES)
       .addFeature(shakaAssets.Feature.WEBM)
       .addFeature(shakaAssets.Feature.OFFLINE),
@@ -439,7 +442,7 @@ shakaAssets.testAssets = [
       /* manifestUri= */ 'https://storage.googleapis.com/shaka-demo-assets/sintel-mp4-only/dash.mpd',
       /* source= */ shakaAssets.Source.SHAKA)
       .addFeature(shakaAssets.Feature.DASH)
-      .addFeature(shakaAssets.Feature.HIGH_DEFINITION)
+      .addFeature(shakaAssets.Feature.ULTRA_HIGH_DEFINITION)
       .addFeature(shakaAssets.Feature.MP4)
       .addFeature(shakaAssets.Feature.SUBTITLES)
       .addFeature(shakaAssets.Feature.OFFLINE),
@@ -450,7 +453,7 @@ shakaAssets.testAssets = [
       /* source= */ shakaAssets.Source.SHAKA)
       .addKeySystem(shakaAssets.KeySystem.WIDEVINE)
       .addFeature(shakaAssets.Feature.DASH)
-      .addFeature(shakaAssets.Feature.HIGH_DEFINITION)
+      .addFeature(shakaAssets.Feature.ULTRA_HIGH_DEFINITION)
       .addFeature(shakaAssets.Feature.MP4)
       .addFeature(shakaAssets.Feature.SUBTITLES)
       .addFeature(shakaAssets.Feature.WEBM)
@@ -476,7 +479,7 @@ shakaAssets.testAssets = [
       .setAdTagUri(shakaAssets.AdTag.AD_POD_PREROLL_MIDROLL_POSTROLL)
       .addKeySystem(shakaAssets.KeySystem.WIDEVINE)
       .addFeature(shakaAssets.Feature.DASH)
-      .addFeature(shakaAssets.Feature.HIGH_DEFINITION)
+      .addFeature(shakaAssets.Feature.ULTRA_HIGH_DEFINITION)
       .addFeature(shakaAssets.Feature.MP4)
       .addFeature(shakaAssets.Feature.SUBTITLES)
       .addFeature(shakaAssets.Feature.WEBM)
@@ -488,7 +491,7 @@ shakaAssets.testAssets = [
       /* manifestUri= */ 'https://storage.googleapis.com/shaka-demo-assets/sintel-mp4-wvtt/dash.mpd',
       /* source= */ shakaAssets.Source.SHAKA)
       .addFeature(shakaAssets.Feature.DASH)
-      .addFeature(shakaAssets.Feature.HIGH_DEFINITION)
+      .addFeature(shakaAssets.Feature.ULTRA_HIGH_DEFINITION)
       .addFeature(shakaAssets.Feature.MP4)
       .addFeature(shakaAssets.Feature.SUBTITLES)
       .addFeature(shakaAssets.Feature.OFFLINE),
@@ -960,7 +963,6 @@ shakaAssets.testAssets = [
       /* manifestUri= */ 'https://livesim2.dashif.org/livesim2/testpic_2s/Manifest_thumbs.mpd',
       /* source= */ shakaAssets.Source.DASH_IF)
       .addFeature(shakaAssets.Feature.DASH)
-      .addFeature(shakaAssets.Feature.ULTRA_HIGH_DEFINITION)
       .addFeature(shakaAssets.Feature.MP4)
       .addFeature(shakaAssets.Feature.LIVE)
       .addFeature(shakaAssets.Feature.THUMBNAILS),
@@ -1004,7 +1006,7 @@ shakaAssets.testAssets = [
       /* source= */ shakaAssets.Source.BITCODIN)
       // Disabled because the audio playlist ends about 9 seconds early somehow.
       .markAsDisabled()
-      .addFeature(shakaAssets.Feature.HIGH_DEFINITION)
+      .addFeature(shakaAssets.Feature.ULTRA_HIGH_DEFINITION)
       .addFeature(shakaAssets.Feature.HLS)
       .addFeature(shakaAssets.Feature.MP2TS)
       .addFeature(shakaAssets.Feature.OFFLINE),
@@ -1364,9 +1366,18 @@ shakaAssets.testAssets = [
       /* source= */ shakaAssets.Source.APPLE)
       .addFeature(shakaAssets.Feature.HLS)
       .addFeature(shakaAssets.Feature.MP4)
-      .addFeature(shakaAssets.Feature.HIGH_DEFINITION)
+      .addFeature(shakaAssets.Feature.ULTRA_HIGH_DEFINITION)
       .addFeature(shakaAssets.Feature.OFFLINE)
       .addFeature(shakaAssets.Feature.THUMBNAILS),
+  new ShakaDemoAssetInfo(
+      /* name= */ '3D movie stream',
+      /* iconUri= */ '',
+      /* manifestUri= */ 'https://devstreaming-cdn.apple.com/videos/streaming/examples/historic_planet_content_2023-10-26-3d-video/main.m3u8',
+      /* source= */ shakaAssets.Source.APPLE)
+      .addFeature(shakaAssets.Feature.HLS)
+      .addFeature(shakaAssets.Feature.ULTRA_HIGH_DEFINITION)
+      .addFeature(shakaAssets.Feature.DOLBY_VISION_3D)
+      .addFeature(shakaAssets.Feature.OFFLINE),
   // }}}
 
   // IRT assets {{{
diff --git a/demo/main.js b/demo/main.js
index 68596bdac0..505634b4ed 100644
--- a/demo/main.js
+++ b/demo/main.js
@@ -735,6 +735,9 @@ shakaDemo.Main = class {
     if (asset.features.includes(shakaAssets.Feature.CONTAINERLESS)) {
       mimeTypes.push('audio/aac');
     }
+    if (asset.features.includes(shakaAssets.Feature.DOLBY_VISION_3D)) {
+      mimeTypes.push('video/mp4; codecs="dvh1.20.01"');
+    }
     const hasSupportedMimeType = mimeTypes.some((type) => {
       return this.support_.media[type];
     });
diff --git a/demo/search.js b/demo/search.js
index 0199538c15..a37c7953c2 100644
--- a/demo/search.js
+++ b/demo/search.js
@@ -371,6 +371,9 @@ shakaDemo.Search = class {
         /* docLink= */ null);
     this.makeBooleanInput_(specialContainer, Feature.HIGH_DEFINITION, FEATURE,
         'Filters for assets with at least one high-definition video stream.');
+    this.makeBooleanInput_(specialContainer, Feature.ULTRA_HIGH_DEFINITION,
+        FEATURE, 'Filters for assets with at least one ultra-high-definition' +
+        ' video stream.');
     this.makeBooleanInput_(specialContainer, Feature.XLINK, FEATURE,
         'Filters for assets that have XLINK tags in their manifests, so that ' +
         'they can be broken into multiple files.');
diff --git a/lib/media/media_source_engine.js b/lib/media/media_source_engine.js
index 835ef4456d..1cf02a205c 100644
--- a/lib/media/media_source_engine.js
+++ b/lib/media/media_source_engine.js
@@ -262,6 +262,7 @@ shaka.media.MediaSourceEngine = class {
       'video/mp4; codecs="vp9"',
       'video/mp4; codecs="vp09.00.10.08"',
       'video/mp4; codecs="av01.0.01M.08"',
+      'video/mp4; codecs="dvh1.20.01"',
       'audio/mp4; codecs="mp4a.40.2"',
       'audio/mp4; codecs="ac-3"',
       'audio/mp4; codecs="ec-3"',