diff --git a/Gemfile b/Gemfile
index bf238120ff..2d46350bda 100644
--- a/Gemfile
+++ b/Gemfile
@@ -30,8 +30,7 @@ gem 'terser'
 gem 'shakapacker'
 
 # Core Samvera
-# gem 'active-fedora', '~> 15.0'
-gem 'active-fedora', git: 'https://github.com/samvera/active_fedora.git', ref: '7f91e09e630f7e3c1eb3d355e5a016ae8af44778'
+gem 'active-fedora', '~> 16.0'
 gem 'active_fedora-datastreams', '~> 0.5'
 gem 'hydra-head', '~> 13.0'
 gem 'ldp', '~> 1.1.0'
@@ -73,8 +72,7 @@ gem 'omniauth-lti', git: "https://github.com/avalonmediasystem/omniauth-lti.git"
 gem "omniauth-saml", "~> 2.0", ">= 2.2.3"
 
 # Media Access & Transcoding
-#gem 'active_encode', '~> 1.3.0'
-gem 'active_encode', git: "https://github.com/samvera-labs/active_encode.git", branch: "mediaconvert_file"
+gem 'active_encode', '~> 2.0'
 gem 'audio_waveform-ruby', '~> 1.0.7', require: 'audio_waveform'
 gem 'browse-everything', git: "https://github.com/avalonmediasystem/browse-everything.git", tag: 'v1.5-Avalon'
 gem 'fastimage'
diff --git a/Gemfile.lock b/Gemfile.lock
index f0e51a855f..5a9d91b987 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -59,24 +59,6 @@ GIT
       addressable (~> 2.8)
       rails
 
-GIT
-  remote: https://github.com/samvera/active_fedora.git
-  revision: 7f91e09e630f7e3c1eb3d355e5a016ae8af44778
-  ref: 7f91e09e630f7e3c1eb3d355e5a016ae8af44778
-  specs:
-    active-fedora (15.0.1)
-      active-triples (>= 0.11.0, < 2.0.0)
-      activemodel (>= 6.1)
-      activesupport (>= 6.1)
-      deprecation
-      faraday (>= 2.0)
-      faraday-encoding (>= 0.0.5)
-      faraday-follow_redirects
-      ldp (>= 0.7.0, < 2)
-      mutex_m
-      rsolr (>= 1.1.2, < 3)
-      ruby-progressbar (~> 1.0)
-
 GEM
   remote: https://rubygems.org/
   specs:
@@ -123,6 +105,18 @@ GEM
       erubi (~> 1.11)
       rails-dom-testing (~> 2.2)
       rails-html-sanitizer (~> 1.6)
+    active-fedora (16.0.0)
+      active-triples (>= 0.11.0, < 2.0.0)
+      activemodel (>= 6.1)
+      activesupport (>= 6.1)
+      deprecation
+      faraday (>= 2.0)
+      faraday-encoding (>= 0.0.5)
+      faraday-follow_redirects
+      ldp (>= 0.7.0, < 2)
+      mutex_m
+      rsolr (>= 1.1.2, < 3)
+      ruby-progressbar (~> 1.0)
     active-triples (1.2.0)
       activemodel (>= 3.0.0)
       activesupport (>= 3.0.0)
@@ -132,6 +126,10 @@ GEM
       json-ld
       rails (>= 5.2)
       rdf-vocab (>= 2.1.0)
+    active_encode (2.0.0)
+      addressable (~> 2.8)
+      rails
+      retriable
     active_fedora-datastreams (0.5.0)
       active-fedora (>= 11.0.0.pre)
       activemodel (>= 5.2)
@@ -252,7 +250,7 @@ GEM
     bcp47_spec (0.2.1)
     bcrypt (3.1.20)
     benchmark (0.4.1)
-    bigdecimal (3.2.2)
+    bigdecimal (3.2.3)
     bindex (0.8.1)
     bixby (5.0.2)
       rubocop (= 1.28.2)
@@ -329,7 +327,7 @@ GEM
     config (5.5.2)
       deep_merge (~> 1.2, >= 1.2.1)
       ostruct
-    connection_pool (2.5.3)
+    connection_pool (2.5.4)
     crack (1.0.0)
       bigdecimal
       rexml
@@ -576,7 +574,7 @@ GEM
     mysql2 (0.5.6)
     net-http (0.6.0)
       uri
-    net-imap (0.5.9)
+    net-imap (0.5.10)
       date
       net-protocol
     net-ldap (0.19.0)
@@ -1000,9 +998,9 @@ PLATFORMS
 
 DEPENDENCIES
   about_page!
-  active-fedora!
+  active-fedora (~> 16.0)
   active_annotations (~> 0.6)
-  active_encode!
+  active_encode (~> 2.0)
   active_fedora-datastreams (~> 0.5)
   activejob-traffic_control
   activejob-uniqueness
diff --git a/app/models/derivative.rb b/app/models/derivative.rb
index fd5ee6fcf1..bf4526c789 100644
--- a/app/models/derivative.rb
+++ b/app/models/derivative.rb
@@ -78,7 +78,8 @@ def set_streaming_locations!
     if managed
       path = Addressable::URI.parse(absolute_location).path
       self.location_url = Avalon::StreamMapper.stream_path(path)
-      self.hls_url = Avalon::StreamMapper.map(path, 'http', format)
+      is_mp3 = format == "audio" && audio_codec == "mp3"
+      self.hls_url = Avalon::StreamMapper.map(path, 'http', (is_mp3 ? "audio_mp3" : format))
     end
     self
   end
@@ -116,6 +117,10 @@ def self.from_output(output, managed = true)
     derivative.video_codec = output[:video_codec]
     derivative.resolution = "#{output[:width]}x#{output[:height]}" if output[:width] && output[:height]
 
+    if derivative.format == "audio" && derivative.audio_codec == "mp3"
+      derivative.mime_type ||= "audio/mpeg"
+    end
+
     # FIXME: Transform to stream url here? How do we distribute to the streaming server?
     derivative.location_url = output[:url]
     # For Intercom push
diff --git a/app/services/file_locator.rb b/app/services/file_locator.rb
index 816e71f3cd..0bb719bd75 100644
--- a/app/services/file_locator.rb
+++ b/app/services/file_locator.rb
@@ -134,12 +134,25 @@ def reader
     when 's3'
       S3File.new(uri).object.get.body
     when 'file'
-      File.open(location,'r')
+      File.open(location, 'r')
     else
       open_uri
     end
   end
 
+  def magic_bytes
+    # Magic bytes for relevant file types should max out at 16, so only request
+    # that range when checking mimetype.
+    case uri.scheme
+    when 's3'
+      S3File.new(uri).object.get(range: 'bytes=0-15').body
+    when 'file'
+      File.read(location, 16)
+    else
+      open_uri.read(16)
+    end
+  end
+
   # Ruby 3.0 removed URI#open from being called by Kernel#open.
   # Prioritize using URI#open, attempt to fallback to Kernel#open
   # if URI fails.
diff --git a/config/media_convert_presets/avalon_audio_high.json b/config/media_convert_presets/avalon_audio_high.json
new file mode 100644
index 0000000000..dc462fd88a
--- /dev/null
+++ b/config/media_convert_presets/avalon_audio_high.json
@@ -0,0 +1,21 @@
+{
+  "Name": "avalon_audio_high",
+  "Category": "avalon",
+  "Settings": {
+    "AudioDescriptions": [
+      {
+        "CodecSettings": {
+          "AacSettings": {
+            "Bitrate": 320000,
+            "CodingMode": "CODING_MODE_2_0",
+            "SampleRate": 44100
+          },
+          "Codec": "AAC"
+        }
+      }
+    ],
+    "ContainerSettings": {
+      "Container": "MP4"
+    }
+  }
+}
diff --git a/config/media_convert_presets/avalon_audio_medium.json b/config/media_convert_presets/avalon_audio_medium.json
new file mode 100644
index 0000000000..476df4c788
--- /dev/null
+++ b/config/media_convert_presets/avalon_audio_medium.json
@@ -0,0 +1,21 @@
+{
+  "Name": "avalon_audio_medium",
+  "Category": "avalon",
+  "Settings": {
+    "AudioDescriptions": [
+      {
+        "CodecSettings": {
+          "AacSettings": {
+            "Bitrate": 128000,
+            "CodingMode": "CODING_MODE_2_0",
+            "SampleRate": 44100
+          },
+          "Codec": "AAC"
+        }
+      }
+    ],
+    "ContainerSettings": {
+      "Container": "MP4"
+    }
+  }
+}
diff --git a/config/media_convert_presets/avalon_video_high.json b/config/media_convert_presets/avalon_video_high.json
new file mode 100644
index 0000000000..e6a4fc4fe2
--- /dev/null
+++ b/config/media_convert_presets/avalon_video_high.json
@@ -0,0 +1,34 @@
+{
+  "Name": "avalon_video_high",
+  "Category": "avalon",
+  "Settings": {
+    "VideoDescription": {
+      "Width": 1920,
+      "ScalingBehavior": "FIT_NO_UPSCALE",
+      "Height": 1080,
+      "CodecSettings": {
+        "Codec": "H_264",
+        "H264Settings": {
+          "Bitrate": 2048000,
+          "CodecProfile": "HIGH",
+          "CodecLevel": "AUTO"
+        }
+      }
+    },
+    "AudioDescriptions": [
+      {
+        "CodecSettings": {
+          "Codec": "AAC",
+          "AacSettings": {
+            "Bitrate": 192000,
+            "CodingMode": "CODING_MODE_2_0",
+            "SampleRate": 44100
+          }
+        }
+      }
+    ],
+    "ContainerSettings": {
+      "Container": "MP4"
+    }
+  }
+}
diff --git a/config/media_convert_presets/avalon_video_low.json b/config/media_convert_presets/avalon_video_low.json
new file mode 100644
index 0000000000..1ad71c225e
--- /dev/null
+++ b/config/media_convert_presets/avalon_video_low.json
@@ -0,0 +1,34 @@
+{
+  "Name": "avalon_video_low",
+  "Category": "avalon",
+  "Settings": {
+    "VideoDescription": {
+      "Width": 720,
+      "ScalingBehavior": "FIT_NO_UPSCALE",
+      "Height": 480,
+      "CodecSettings": {
+        "Codec": "H_264",
+        "H264Settings": {
+          "Bitrate": 500000,
+          "CodecProfile": "HIGH",
+          "CodecLevel": "AUTO"
+        }
+      }
+    },
+    "AudioDescriptions": [
+      {
+        "CodecSettings": {
+          "Codec": "AAC",
+          "AacSettings": {
+            "Bitrate": 128000,
+            "CodingMode": "CODING_MODE_2_0",
+            "SampleRate": 44100
+          }
+        }
+      }
+    ],
+    "ContainerSettings": {
+      "Container": "MP4"
+    }
+  }
+}
diff --git a/config/media_convert_presets/avalon_video_medium.json b/config/media_convert_presets/avalon_video_medium.json
new file mode 100644
index 0000000000..5e94fc9878
--- /dev/null
+++ b/config/media_convert_presets/avalon_video_medium.json
@@ -0,0 +1,34 @@
+{
+  "Name": "avalon_video_medium",
+  "Category": "avalon",
+  "Settings": {
+    "VideoDescription": {
+      "Width": 1280,
+      "ScalingBehavior": "FIT_NO_UPSCALE",
+      "Height": 720,
+      "CodecSettings": {
+        "Codec": "H_264",
+        "H264Settings": {
+          "Bitrate": 1024000,
+          "CodecProfile": "HIGH",
+          "CodecLevel": "AUTO"
+        }
+      }
+    },
+    "AudioDescriptions": [
+      {
+        "CodecSettings": {
+          "Codec": "AAC",
+          "AacSettings": {
+            "Bitrate": 128000,
+            "CodingMode": "CODING_MODE_2_0",
+            "SampleRate": 44100
+          }
+        }
+      }
+    ],
+    "ContainerSettings": {
+      "Container": "MP4"
+    }
+  }
+}
diff --git a/config/url_handlers.yml b/config/url_handlers.yml
index 6391299641..01e156ee68 100644
--- a/config/url_handlers.yml
+++ b/config/url_handlers.yml
@@ -15,4 +15,5 @@ nginx:
   http:
     video: <%=http_base%>/<%=path%>/<%=filename%>.<%=extension%>/index.m3u8
     audio: <%=http_base%>/<%=path%>/<%=filename%>.<%=extension%>/index.m3u8
+    audio_mp3: <%=http_base%>/<%=path%>/<%=filename%>.<%=extension%>
     
diff --git a/docker-compose.yml b/docker-compose.yml
index 92ebd1f46b..9534984587 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -65,10 +65,11 @@ services:
       - ./solr/conf:/opt/solr/avalon_conf
 
   hls:
-    image: avalonmediasystem/nginx:minio-jammy
+    image: avalonmediasystem/nginx:noble
     environment:
       - AVALON_DOMAIN=http://avalon:3000
       - AVALON_STREAMING_BUCKET_URL=http://minio:9000/derivatives/
+      - VOD_MODE=remote
     volumes:
       - ./log/nginx:/var/log/nginx
     ports:
diff --git a/lib/avalon/ffprobe.rb b/lib/avalon/ffprobe.rb
index 7f2ea8bc19..b660342604 100644
--- a/lib/avalon/ffprobe.rb
+++ b/lib/avalon/ffprobe.rb
@@ -80,7 +80,7 @@ def content_type media_file
       # Remove S3 credentials or other params from extension output
       extension = File.extname(media_file.location)&.gsub(/[\?#].*/, '')
       # Fall back on file extension if magic bytes fail to identify file
-      Marcel::MimeType.for media_file.reader, extension: extension
+      @content_type ||= Marcel::MimeType.for media_file.magic_bytes, extension: extension
     end
 
     def valid_content_type? media_file
diff --git a/lib/avalon/media_convert_encode.rb b/lib/avalon/media_convert_encode.rb
index 38639472db..d18945c259 100644
--- a/lib/avalon/media_convert_encode.rb
+++ b/lib/avalon/media_convert_encode.rb
@@ -12,8 +12,6 @@
 #   specific language governing permissions and limitations under the License.
 # ---  END LICENSE_HEADER BLOCK  ---
 
-require 'avalon/elastic_transcoder'
-
 class MediaConvertEncode < WatchedEncode
   self.engine_adapter = :media_convert
   self.engine_adapter.role = Settings.encoding.media_convert_role
diff --git a/spec/services/file_locator_spec.rb b/spec/services/file_locator_spec.rb
index bf4cd5430c..398263394e 100644
--- a/spec/services/file_locator_spec.rb
+++ b/spec/services/file_locator_spec.rb
@@ -45,7 +45,7 @@
           allow(ENV).to receive(:[]).with('AWS_REGION').and_return('us-east-2')
           expect(subject.host).to eq 'mybucket.domain'
           expect(subject.path).to eq '/mykey.mp4'
-          expect(subject.query).to include('response-content-disposition=attachment%3B%20filename%3Dmykey.mp4', 'X-Amz-Algorithm', 
+          expect(subject.query).to include('response-content-disposition=attachment%3B%20filename%3Dmykey.mp4', 'X-Amz-Algorithm',
                                            'X-Amz-Credential', 'X-Amz-Expires', 'X-Amz-SignedHeaders', 'X-Amz-Signature')
         end
 
@@ -60,7 +60,7 @@
           allow(ENV).to receive(:[]).with('AWS_REGION').and_return('us-east-2')
           expect(subject.host).to eq 'mybucket.s3.us-stubbed-1.amazonaws.com'
           expect(subject.path).to eq '/mykey.mp4'
-          expect(subject.query).to include('response-content-disposition=attachment%3B%20filename%3Dmykey.mp4', 'X-Amz-Algorithm', 
+          expect(subject.query).to include('response-content-disposition=attachment%3B%20filename%3Dmykey.mp4', 'X-Amz-Algorithm',
                                            'X-Amz-Credential', 'X-Amz-Expires', 'X-Amz-SignedHeaders', 'X-Amz-Signature')
         end
       end
@@ -168,7 +168,7 @@
     describe '#remove_fs_dir' do
       let(:file_path) { "/tmp/dropbox/test/mykey.mp4" }
       let(:locator) { FileLocator.new(file_path) }
-  
+
       it 'deletes fs dir' do
         allow(File).to receive(:exist?).with(file_path) { true }
         expect(locator.exist?).to be_truthy
@@ -177,14 +177,14 @@
         expect(locator.exist?).to be_falsey
       end
     end
-  
+
     describe '#remove_s3_dir' do
       let(:old_bucket) { Settings.encoding.masterfile_bucket }
       let(:old_path) { Settings.dropbox.path }
 
       let(:dropbox_path) { "s3://#{test_bucket}/dropbox/test_collection" }
       let(:test_bucket) { "test_bucket" }
-      let(:dropbox_prefix) { "/dropbox/test_collection/"}
+      let(:dropbox_prefix) { "/dropbox/test_collection/" }
       let(:s3_res) { Aws::S3::Resource.new }
       let(:s3_bucket) { Aws::S3::Bucket.new(test_bucket) }
 
@@ -225,4 +225,58 @@
       end
     end
   end
+
+  describe "#magic_bytes" do
+    let(:locator) { FileLocator.new(source) }
+    let(:source) { "file://#{Rails.root.join('spec', 'fixtures', 'videoshort.mp4')}" }
+
+    context "local file" do
+      it "returns the first 16 bytes" do
+        expect(locator.magic_bytes.length).to eq 16
+      end
+
+      it 'successfully returns correct mimetype' do
+        expect(Marcel::MimeType.for(locator.magic_bytes)).to eq 'video/mp4'
+      end
+    end
+
+    context "s3 file" do
+      let(:client) { Aws::S3::Client.new(stub_responses: true) }
+      let(:bucket) { "mybucket" }
+      let(:key) { "meow.wav" }
+      let(:source) { "s3://#{bucket}/#{key}" }
+      let(:object_body) { File.read(Rails.root.join('spec', 'fixtures', 'videoshort.mp4')) }
+
+      before do
+        client.stub_responses(:get_object, lambda { |context|
+          range = context.params[:range]
+          from, to = range.match(/bytes=(\d+)-(\d+)/)[1..2].map(&:to_i)
+          # Return the specific byte range of the content
+          { body: object_body[from..to], content_range: "bytes #{from}-#{to}/#{object_body.length}" }
+        })
+
+        allow(Aws::S3::Client).to receive(:new).and_return(client)
+      end
+
+      it "returns the first 16 bytes" do
+        expect(locator.magic_bytes.length).to eq 16
+      end
+
+      it 'successfully returns correct mimetype' do
+        expect(Marcel::MimeType.for(locator.magic_bytes)).to eq 'video/mp4'
+      end
+    end
+
+    context "other file" do
+      let(:file_path) { "bogus://#{source}" }
+      it "returns the first 16 bytes" do
+        allow(URI).to receive(:open).with(file_path).and_return(URI.open(Rails.root.join('spec', 'fixtures', 'videoshort.mp4').to_s))
+        expect(locator.magic_bytes.length).to eq 16
+      end
+
+      it 'successfully returns correct mimetype' do
+        expect(Marcel::MimeType.for(locator.magic_bytes)).to eq 'video/mp4'
+      end
+    end
+  end
 end