diff --git a/lib/audio.js b/lib/audio.js
index 3904312..de46198 100644
--- a/lib/audio.js
+++ b/lib/audio.js
@@ -50,6 +50,15 @@ const parseAudioCodec = (codecs) => {
   );
 };
 
+const isAudioCodec = (codecs) => {
+  try {
+    parseAudioCodec(codecs);
+    return true;
+  } catch (e) {
+    return false;
+  }
+};
+
 // https://professionalsupport.dolby.com/s/article/What-is-Dolby-Digital-Plus-JOC-Joint-Object-Coding?language=en_US
 const getDolbyDigitalPlusComplexityIndex = (supplementalProps = []) => {
   const targetScheme =
@@ -91,6 +100,7 @@ const createAudioTrack = ({
   type,
   codec,
   channels,
+  contentProtection,
   bitrate,
   duration,
   jointObjectCoding = 0,
@@ -110,6 +120,7 @@ const createAudioTrack = ({
     codec,
     bitrate: parsedBitrate,
     size,
+    protection: contentProtection,
     language,
     segments,
     channels: parsedChannels,
@@ -131,6 +142,7 @@ const createAudioTrack = ({
 module.exports = {
   AUDIO_CODECS,
   parseAudioCodec,
+  isAudioCodec,
   createAudioTrack,
   getDolbyDigitalPlusComplexityIndex,
   checkIsDescriptive,
diff --git a/lib/dash.js b/lib/dash.js
index 8fea357..a41cc53 100644
--- a/lib/dash.js
+++ b/lib/dash.js
@@ -4,17 +4,20 @@ const xml = require('./xml');
 const { parseDuration, isLanguageTagValid } = require('./util');
 const {
   parseVideoCodec,
+  isVideoCodec,
   parseDynamicRange,
   createVideoTrack,
 } = require('./video');
 const {
   parseAudioCodec,
+  isAudioCodec,
   createAudioTrack,
   getDolbyDigitalPlusComplexityIndex,
   checkIsDescriptive,
 } = require('./audio');
 const {
   parseSubtitleCodec,
+  isSubtitleCodec,
   checkIsClosedCaption,
   checkIsSdh,
   checkIsForced,
@@ -77,9 +80,11 @@ const parseBaseUrl = (manifestUrl, mpd, period, representation) => {
 };
 
 const parseContentTypes = (representation) => {
+  const codecs = representation.get('codecs');
+  const codecsType = isVideoCodec(codecs) ? 'video' : isAudioCodec(codecs) ? 'audio' : isSubtitleCodec(codecs) ? 'text' : null;
   const mimeType = representation.get('mimeType');
   const contentType =
-    representation.get('contentType') || mimeType?.split('/')[0];
+    codecsType || codecsTyperepresentation.get('contentType') || mimeType?.split('/')[0];
   if (!contentType && !mimeType)
     throw new Error(
       'Unable to determine the format of a Representation, cannot continue...',
@@ -300,6 +305,7 @@ const parseContentProtection = (contentProtections) => {
 };
 
 const parseManifest = async (text, url, fallbackLanguage) => {
+  text = text.replace(/\$.*?(RepresentationID|Number|Time).*?\$/g, "$$$1$$");
   const mpd = appendUtils(xml.parse(text)).get('MPD');
   const period = mpd.get('Period');
   const durationString =
@@ -414,6 +420,7 @@ const parseManifest = async (text, url, fallbackLanguage) => {
             jointObjectCoding:
               getDolbyDigitalPlusComplexityIndex(supplementalProps),
             isDescriptive: checkIsDescriptive(accessibilities),
+            contentProtection: parseContentProtection(contentProtections),
             bitrate,
             duration,
             language,
diff --git a/lib/subtitle.js b/lib/subtitle.js
index e8e40a0..b9c555d 100644
--- a/lib/subtitle.js
+++ b/lib/subtitle.js
@@ -51,6 +51,15 @@ const parseSubtitleCodec = (codecs) => {
   );
 };
 
+const isSubtitleCodec = (codecs) => {
+  try {
+    parseSubtitleCodec(codecs);
+    return true;
+  } catch (e) {
+    return false;
+  }
+};
+
 const checkIsClosedCaption = (roles = []) => {
   for (const role of roles) {
     const isClosedCaption =
@@ -120,6 +129,7 @@ const createSubtitleTrack = ({
 
 module.exports = {
   parseSubtitleCodec,
+  isSubtitleCodec,
   checkIsClosedCaption,
   checkIsSdh,
   checkIsForced,
diff --git a/lib/video.js b/lib/video.js
index 0d8145c..fe25840 100644
--- a/lib/video.js
+++ b/lib/video.js
@@ -153,6 +153,15 @@ const parseVideoCodec = (codecs) => {
   );
 };
 
+const isVideoCodec = (codecs) => {
+  try {
+    parseVideoCodec(codecs);
+    return true;
+  } catch (e) {
+    return false;
+  }
+};
+
 const parseDynamicRange = (
   codecs,
   supplementalProps = [],
@@ -185,6 +194,7 @@ const parseDynamicRange = (
 
 module.exports = {
   parseVideoCodec,
+  isVideoCodec,
   parseDynamicRange,
   createVideoTrack,
   VIDEO_CODECS,