diff --git a/package.json b/package.json
index b39779db85d..697122d848b 100644
--- a/package.json
+++ b/package.json
@@ -29,11 +29,11 @@
   },
   "devDependencies": {
     "adm-zip": "0.4.7",
+    "arraybuffer-loader": "^1.0.3",
     "babel-core": "^6.24.1",
     "babel-eslint": "^7.1.1",
     "babel-loader": "^7.0.0",
     "babel-preset-es2015": "^6.24.1",
-    "buffer-loader": "0.0.1",
     "canvas-toBlob": "1.0.0",
     "copy-webpack-plugin": "4.2.1",
     "decode-html": "2.0.0",
diff --git a/src/extensions/scratch3_music/index.js b/src/extensions/scratch3_music/index.js
index 03f175c759d..bfa55bee371 100644
--- a/src/extensions/scratch3_music/index.js
+++ b/src/extensions/scratch3_music/index.js
@@ -115,7 +115,7 @@ class Scratch3MusicBlocks {
         if (!assetData[fullPath]) return;
 
         // The sound buffer has already been downloaded via the manifest file required above.
-        const soundBuffer = assetData[fullPath].buffer;
+        const soundBuffer = assetData[fullPath];
 
         return this._decodeSound(soundBuffer).then(buffer => {
             bufferArray[index] = buffer;
diff --git a/src/extensions/scratch3_music/manifest.js b/src/extensions/scratch3_music/manifest.js
index 017da03b9e0..be166a76c46 100644
--- a/src/extensions/scratch3_music/manifest.js
+++ b/src/extensions/scratch3_music/manifest.js
@@ -1,63 +1,65 @@
 module.exports = {
-    'drums/1-snare.mp3': require('!buffer-loader!./assets/drums/1-snare.mp3'),
-    'drums/2-bass-drum.mp3': require('!buffer-loader!./assets/drums/2-bass-drum.mp3'),
-    'drums/3-side-stick.mp3': require('!buffer-loader!./assets/drums/3-side-stick.mp3'),
-    'drums/4-crash-cymbal.mp3': require('!buffer-loader!./assets/drums/4-crash-cymbal.mp3'),
-    'drums/5-open-hi-hat.mp3': require('!buffer-loader!./assets/drums/5-open-hi-hat.mp3'),
-    'drums/6-closed-hi-hat.mp3': require('!buffer-loader!./assets/drums/6-closed-hi-hat.mp3'),
-    'drums/7-tambourine.mp3': require('!buffer-loader!./assets/drums/7-tambourine.mp3'),
-    'drums/8-hand-clap.mp3': require('!buffer-loader!./assets/drums/8-hand-clap.mp3'),
-    'drums/9-claves.mp3': require('!buffer-loader!./assets/drums/9-claves.mp3'),
-    'drums/10-wood-block.mp3': require('!buffer-loader!./assets/drums/10-wood-block.mp3'),
-    'drums/11-cowbell.mp3': require('!buffer-loader!./assets/drums/11-cowbell.mp3'),
-    'drums/12-triangle.mp3': require('!buffer-loader!./assets/drums/12-triangle.mp3'),
-    'drums/13-bongo.mp3': require('!buffer-loader!./assets/drums/13-bongo.mp3'),
-    'drums/14-conga.mp3': require('!buffer-loader!./assets/drums/14-conga.mp3'),
-    'drums/15-cabasa.mp3': require('!buffer-loader!./assets/drums/15-cabasa.mp3'),
-    'drums/16-guiro.mp3': require('!buffer-loader!./assets/drums/16-guiro.mp3'),
-    'drums/17-vibraslap.mp3': require('!buffer-loader!./assets/drums/17-vibraslap.mp3'),
-    'drums/18-cuica.mp3': require('!buffer-loader!./assets/drums/18-cuica.mp3'),
-    'instruments/1-piano/24.mp3': require('!buffer-loader!./assets/instruments/1-piano/24.mp3'),
-    'instruments/1-piano/36.mp3': require('!buffer-loader!./assets/instruments/1-piano/36.mp3'),
-    'instruments/1-piano/48.mp3': require('!buffer-loader!./assets/instruments/1-piano/48.mp3'),
-    'instruments/1-piano/60.mp3': require('!buffer-loader!./assets/instruments/1-piano/60.mp3'),
-    'instruments/1-piano/72.mp3': require('!buffer-loader!./assets/instruments/1-piano/72.mp3'),
-    'instruments/1-piano/84.mp3': require('!buffer-loader!./assets/instruments/1-piano/84.mp3'),
-    'instruments/1-piano/96.mp3': require('!buffer-loader!./assets/instruments/1-piano/96.mp3'),
-    'instruments/1-piano/108.mp3': require('!buffer-loader!./assets/instruments/1-piano/108.mp3'),
-    'instruments/2-electric-piano/60.mp3': require('!buffer-loader!./assets/instruments/2-electric-piano/60.mp3'),
-    'instruments/3-organ/60.mp3': require('!buffer-loader!./assets/instruments/3-organ/60.mp3'),
-    'instruments/4-guitar/60.mp3': require('!buffer-loader!./assets/instruments/4-guitar/60.mp3'),
-    'instruments/5-electric-guitar/60.mp3': require('!buffer-loader!./assets/instruments/5-electric-guitar/60.mp3'),
-    'instruments/6-bass/36.mp3': require('!buffer-loader!./assets/instruments/6-bass/36.mp3'),
-    'instruments/6-bass/48.mp3': require('!buffer-loader!./assets/instruments/6-bass/48.mp3'),
-    'instruments/7-pizzicato/60.mp3': require('!buffer-loader!./assets/instruments/7-pizzicato/60.mp3'),
-    'instruments/8-cello/36.mp3': require('!buffer-loader!./assets/instruments/8-cello/36.mp3'),
-    'instruments/8-cello/48.mp3': require('!buffer-loader!./assets/instruments/8-cello/48.mp3'),
-    'instruments/8-cello/60.mp3': require('!buffer-loader!./assets/instruments/8-cello/60.mp3'),
-    'instruments/9-trombone/36.mp3': require('!buffer-loader!./assets/instruments/9-trombone/36.mp3'),
-    'instruments/9-trombone/48.mp3': require('!buffer-loader!./assets/instruments/9-trombone/48.mp3'),
-    'instruments/9-trombone/60.mp3': require('!buffer-loader!./assets/instruments/9-trombone/60.mp3'),
-    'instruments/10-clarinet/48.mp3': require('!buffer-loader!./assets/instruments/10-clarinet/48.mp3'),
-    'instruments/10-clarinet/60.mp3': require('!buffer-loader!./assets/instruments/10-clarinet/60.mp3'),
-    'instruments/11-saxophone/36.mp3': require('!buffer-loader!./assets/instruments/11-saxophone/36.mp3'),
-    'instruments/11-saxophone/60.mp3': require('!buffer-loader!./assets/instruments/11-saxophone/60.mp3'),
-    'instruments/11-saxophone/84.mp3': require('!buffer-loader!./assets/instruments/11-saxophone/84.mp3'),
-    'instruments/12-flute/60.mp3': require('!buffer-loader!./assets/instruments/12-flute/60.mp3'),
-    'instruments/12-flute/72.mp3': require('!buffer-loader!./assets/instruments/12-flute/72.mp3'),
-    'instruments/13-wooden-flute/60.mp3': require('!buffer-loader!./assets/instruments/13-wooden-flute/60.mp3'),
-    'instruments/13-wooden-flute/72.mp3': require('!buffer-loader!./assets/instruments/13-wooden-flute/72.mp3'),
-    'instruments/14-bassoon/36.mp3': require('!buffer-loader!./assets/instruments/14-bassoon/36.mp3'),
-    'instruments/14-bassoon/48.mp3': require('!buffer-loader!./assets/instruments/14-bassoon/48.mp3'),
-    'instruments/14-bassoon/60.mp3': require('!buffer-loader!./assets/instruments/14-bassoon/60.mp3'),
-    'instruments/15-choir/48.mp3': require('!buffer-loader!./assets/instruments/15-choir/48.mp3'),
-    'instruments/15-choir/60.mp3': require('!buffer-loader!./assets/instruments/15-choir/60.mp3'),
-    'instruments/15-choir/72.mp3': require('!buffer-loader!./assets/instruments/15-choir/72.mp3'),
-    'instruments/16-vibraphone/60.mp3': require('!buffer-loader!./assets/instruments/16-vibraphone/60.mp3'),
-    'instruments/16-vibraphone/72.mp3': require('!buffer-loader!./assets/instruments/16-vibraphone/72.mp3'),
-    'instruments/17-music-box/60.mp3': require('!buffer-loader!./assets/instruments/17-music-box/60.mp3'),
-    'instruments/18-steel-drum/60.mp3': require('!buffer-loader!./assets/instruments/18-steel-drum/60.mp3'),
-    'instruments/19-marimba/60.mp3': require('!buffer-loader!./assets/instruments/19-marimba/60.mp3'),
-    'instruments/20-synth-lead/60.mp3': require('!buffer-loader!./assets/instruments/20-synth-lead/60.mp3'),
-    'instruments/21-synth-pad/60.mp3': require('!buffer-loader!./assets/instruments/21-synth-pad/60.mp3')
+    'drums/1-snare.mp3': require('!arraybuffer-loader!./assets/drums/1-snare.mp3'),
+    'drums/2-bass-drum.mp3': require('!arraybuffer-loader!./assets/drums/2-bass-drum.mp3'),
+    'drums/3-side-stick.mp3': require('!arraybuffer-loader!./assets/drums/3-side-stick.mp3'),
+    'drums/4-crash-cymbal.mp3': require('!arraybuffer-loader!./assets/drums/4-crash-cymbal.mp3'),
+    'drums/5-open-hi-hat.mp3': require('!arraybuffer-loader!./assets/drums/5-open-hi-hat.mp3'),
+    'drums/6-closed-hi-hat.mp3': require('!arraybuffer-loader!./assets/drums/6-closed-hi-hat.mp3'),
+    'drums/7-tambourine.mp3': require('!arraybuffer-loader!./assets/drums/7-tambourine.mp3'),
+    'drums/8-hand-clap.mp3': require('!arraybuffer-loader!./assets/drums/8-hand-clap.mp3'),
+    'drums/9-claves.mp3': require('!arraybuffer-loader!./assets/drums/9-claves.mp3'),
+    'drums/10-wood-block.mp3': require('!arraybuffer-loader!./assets/drums/10-wood-block.mp3'),
+    'drums/11-cowbell.mp3': require('!arraybuffer-loader!./assets/drums/11-cowbell.mp3'),
+    'drums/12-triangle.mp3': require('!arraybuffer-loader!./assets/drums/12-triangle.mp3'),
+    'drums/13-bongo.mp3': require('!arraybuffer-loader!./assets/drums/13-bongo.mp3'),
+    'drums/14-conga.mp3': require('!arraybuffer-loader!./assets/drums/14-conga.mp3'),
+    'drums/15-cabasa.mp3': require('!arraybuffer-loader!./assets/drums/15-cabasa.mp3'),
+    'drums/16-guiro.mp3': require('!arraybuffer-loader!./assets/drums/16-guiro.mp3'),
+    'drums/17-vibraslap.mp3': require('!arraybuffer-loader!./assets/drums/17-vibraslap.mp3'),
+    'drums/18-cuica.mp3': require('!arraybuffer-loader!./assets/drums/18-cuica.mp3'),
+    'instruments/1-piano/24.mp3': require('!arraybuffer-loader!./assets/instruments/1-piano/24.mp3'),
+    'instruments/1-piano/36.mp3': require('!arraybuffer-loader!./assets/instruments/1-piano/36.mp3'),
+    'instruments/1-piano/48.mp3': require('!arraybuffer-loader!./assets/instruments/1-piano/48.mp3'),
+    'instruments/1-piano/60.mp3': require('!arraybuffer-loader!./assets/instruments/1-piano/60.mp3'),
+    'instruments/1-piano/72.mp3': require('!arraybuffer-loader!./assets/instruments/1-piano/72.mp3'),
+    'instruments/1-piano/84.mp3': require('!arraybuffer-loader!./assets/instruments/1-piano/84.mp3'),
+    'instruments/1-piano/96.mp3': require('!arraybuffer-loader!./assets/instruments/1-piano/96.mp3'),
+    'instruments/1-piano/108.mp3': require('!arraybuffer-loader!./assets/instruments/1-piano/108.mp3'),
+    'instruments/2-electric-piano/60.mp3': require('!arraybuffer-loader!./assets/instruments/2-electric-piano/60.mp3'),
+    'instruments/3-organ/60.mp3': require('!arraybuffer-loader!./assets/instruments/3-organ/60.mp3'),
+    'instruments/4-guitar/60.mp3': require('!arraybuffer-loader!./assets/instruments/4-guitar/60.mp3'),
+    'instruments/5-electric-guitar/60.mp3': require(
+        '!arraybuffer-loader!./assets/instruments/5-electric-guitar/60.mp3'
+    ),
+    'instruments/6-bass/36.mp3': require('!arraybuffer-loader!./assets/instruments/6-bass/36.mp3'),
+    'instruments/6-bass/48.mp3': require('!arraybuffer-loader!./assets/instruments/6-bass/48.mp3'),
+    'instruments/7-pizzicato/60.mp3': require('!arraybuffer-loader!./assets/instruments/7-pizzicato/60.mp3'),
+    'instruments/8-cello/36.mp3': require('!arraybuffer-loader!./assets/instruments/8-cello/36.mp3'),
+    'instruments/8-cello/48.mp3': require('!arraybuffer-loader!./assets/instruments/8-cello/48.mp3'),
+    'instruments/8-cello/60.mp3': require('!arraybuffer-loader!./assets/instruments/8-cello/60.mp3'),
+    'instruments/9-trombone/36.mp3': require('!arraybuffer-loader!./assets/instruments/9-trombone/36.mp3'),
+    'instruments/9-trombone/48.mp3': require('!arraybuffer-loader!./assets/instruments/9-trombone/48.mp3'),
+    'instruments/9-trombone/60.mp3': require('!arraybuffer-loader!./assets/instruments/9-trombone/60.mp3'),
+    'instruments/10-clarinet/48.mp3': require('!arraybuffer-loader!./assets/instruments/10-clarinet/48.mp3'),
+    'instruments/10-clarinet/60.mp3': require('!arraybuffer-loader!./assets/instruments/10-clarinet/60.mp3'),
+    'instruments/11-saxophone/36.mp3': require('!arraybuffer-loader!./assets/instruments/11-saxophone/36.mp3'),
+    'instruments/11-saxophone/60.mp3': require('!arraybuffer-loader!./assets/instruments/11-saxophone/60.mp3'),
+    'instruments/11-saxophone/84.mp3': require('!arraybuffer-loader!./assets/instruments/11-saxophone/84.mp3'),
+    'instruments/12-flute/60.mp3': require('!arraybuffer-loader!./assets/instruments/12-flute/60.mp3'),
+    'instruments/12-flute/72.mp3': require('!arraybuffer-loader!./assets/instruments/12-flute/72.mp3'),
+    'instruments/13-wooden-flute/60.mp3': require('!arraybuffer-loader!./assets/instruments/13-wooden-flute/60.mp3'),
+    'instruments/13-wooden-flute/72.mp3': require('!arraybuffer-loader!./assets/instruments/13-wooden-flute/72.mp3'),
+    'instruments/14-bassoon/36.mp3': require('!arraybuffer-loader!./assets/instruments/14-bassoon/36.mp3'),
+    'instruments/14-bassoon/48.mp3': require('!arraybuffer-loader!./assets/instruments/14-bassoon/48.mp3'),
+    'instruments/14-bassoon/60.mp3': require('!arraybuffer-loader!./assets/instruments/14-bassoon/60.mp3'),
+    'instruments/15-choir/48.mp3': require('!arraybuffer-loader!./assets/instruments/15-choir/48.mp3'),
+    'instruments/15-choir/60.mp3': require('!arraybuffer-loader!./assets/instruments/15-choir/60.mp3'),
+    'instruments/15-choir/72.mp3': require('!arraybuffer-loader!./assets/instruments/15-choir/72.mp3'),
+    'instruments/16-vibraphone/60.mp3': require('!arraybuffer-loader!./assets/instruments/16-vibraphone/60.mp3'),
+    'instruments/16-vibraphone/72.mp3': require('!arraybuffer-loader!./assets/instruments/16-vibraphone/72.mp3'),
+    'instruments/17-music-box/60.mp3': require('!arraybuffer-loader!./assets/instruments/17-music-box/60.mp3'),
+    'instruments/18-steel-drum/60.mp3': require('!arraybuffer-loader!./assets/instruments/18-steel-drum/60.mp3'),
+    'instruments/19-marimba/60.mp3': require('!arraybuffer-loader!./assets/instruments/19-marimba/60.mp3'),
+    'instruments/20-synth-lead/60.mp3': require('!arraybuffer-loader!./assets/instruments/20-synth-lead/60.mp3'),
+    'instruments/21-synth-pad/60.mp3': require('!arraybuffer-loader!./assets/instruments/21-synth-pad/60.mp3')
 };