diff --git a/360-photos.html b/360-photos.html
index 275c3745..e6223211 100644
--- a/360-photos.html
+++ b/360-photos.html
@@ -69,7 +69,7 @@
       let renderer = null;
       let scene = new Scene();
       scene.addNode(new SkyboxNode({
-        url: 'media/textures/chess-pano-4k.png',
+        url: 'media/textures/chess-pano-4k.jpg',
         displayMode: 'stereoTopBottom'
       }));
 
diff --git a/layers-samples/eqrt-layer.html b/layers-samples/eqrt-layer.html
index 3237538c..0b0eef26 100644
--- a/layers-samples/eqrt-layer.html
+++ b/layers-samples/eqrt-layer.html
@@ -69,8 +69,8 @@
 
     const EQRT_TEXTURE_MONO_PATH = '../media/textures/mono_equirect_test.png';
     const EQRT_180_TEXTURE_MONO_PATH = '../media/textures/mono-equirect180.png';
-    const EQRT_TEXTURE_STEREO_PATH = '../media/textures/chess-pano-4k.png';
-    const EQRT_180_TEXTURE_STEREO_PATH = '../media/textures/chess-pano-4k180.png';
+    const EQRT_TEXTURE_STEREO_PATH = '../media/textures/chess-pano-4k.jpg';
+    const EQRT_180_TEXTURE_STEREO_PATH = '../media/textures/chess-pano-4k180.jpg';
 
     // If requested, use the polyfill to provide support for mobile devices
     // and devices which only support WebVR.
@@ -245,4 +245,4 @@
   </script>
 </body>
 
-</html>
+</html>
\ No newline at end of file
diff --git a/media/textures/chess-pano-4k.jpg b/media/textures/chess-pano-4k.jpg
new file mode 100644
index 00000000..cb38f69c
Binary files /dev/null and b/media/textures/chess-pano-4k.jpg differ
diff --git a/media/textures/chess-pano-4k.png b/media/textures/chess-pano-4k.png
deleted file mode 100644
index 911f5537..00000000
Binary files a/media/textures/chess-pano-4k.png and /dev/null differ
diff --git a/media/textures/chess-pano-4k180.png b/media/textures/chess-pano-4k180.png
deleted file mode 100644
index 9706f783..00000000
Binary files a/media/textures/chess-pano-4k180.png and /dev/null differ