diff --git a/src/api/gramjs/methods/media.ts b/src/api/gramjs/methods/media.ts
index 65e09d3cb..79637491f 100644
--- a/src/api/gramjs/methods/media.ts
+++ b/src/api/gramjs/methods/media.ts
@@ -33,7 +33,7 @@ export default async function downloadMedia(
 ) {
   const {
     data, mimeType, fullSize,
-  } = await download(url, client, onProgress, start, end, mediaFormat, isHtmlAllowed) || {};
+  } = await download(url, client, onProgress, start, end, isHtmlAllowed) || {};
 
   if (!data) {
     return undefined;
@@ -75,7 +75,6 @@ async function download(
   onProgress?: ApiOnProgress,
   start?: number,
   end?: number,
-  mediaFormat?: ApiMediaFormat,
   isHtmlAllowed?: boolean,
 ) {
   const parsed = parseMediaUrl(url);
@@ -146,10 +145,6 @@ async function download(
   }
 
   if (MEDIA_ENTITY_TYPES.has(entityType)) {
-    if (mediaFormat === ApiMediaFormat.Stream) {
-      onProgress!.acceptsBuffer = true;
-    }
-
     const data = await client.downloadMedia(entity, {
       sizeType, start, end, progressCallback: onProgress, workers: DOWNLOAD_WORKERS,
     });
diff --git a/src/api/types/media.ts b/src/api/types/media.ts
index 3ce41c50a..f10ea9278 100644
--- a/src/api/types/media.ts
+++ b/src/api/types/media.ts
@@ -4,7 +4,6 @@
 export enum ApiMediaFormat {
   BlobUrl,
   Progressive,
-  Stream,
   DownloadUrl,
   Text,
 }
diff --git a/src/api/types/misc.ts b/src/api/types/misc.ts
index dcabf558b..0c7cfb852 100644
--- a/src/api/types/misc.ts
+++ b/src/api/types/misc.ts
@@ -24,7 +24,6 @@ export interface ApiOnProgress {
   ): void;
 
   isCanceled?: boolean;
-  acceptsBuffer?: boolean;
 }
 
 export interface ApiAttachment {
diff --git a/src/hooks/useMediaWithLoadProgress.ts b/src/hooks/useMediaWithLoadProgress.ts
index 635de0e59..83644e9f9 100644
--- a/src/hooks/useMediaWithLoadProgress.ts
+++ b/src/hooks/useMediaWithLoadProgress.ts
@@ -21,9 +21,7 @@ export default function useMediaWithLoadProgress(
   isHtmlAllowed = false,
 ) {
   const mediaData = mediaHash ? mediaLoader.getFromMemory(mediaHash) : undefined;
-  const isStreaming = mediaFormat === ApiMediaFormat.Stream || (
-    IS_PROGRESSIVE_SUPPORTED && mediaFormat === ApiMediaFormat.Progressive
-  );
+  const isStreaming = IS_PROGRESSIVE_SUPPORTED && mediaFormat === ApiMediaFormat.Progressive;
   const forceUpdate = useForceUpdate();
   const id = useUniqueId();
   const [loadProgress, setLoadProgress] = useState(mediaData && !isStreaming ? 1 : 0);
diff --git a/src/lib/gramjs/client/downloadFile.ts b/src/lib/gramjs/client/downloadFile.ts
index ddf6c00a0..a0214e382 100644
--- a/src/lib/gramjs/client/downloadFile.ts
+++ b/src/lib/gramjs/client/downloadFile.ts
@@ -9,8 +9,6 @@ import { Foreman } from '../../../util/foreman';
 
 interface OnProgress {
     isCanceled?: boolean;
-    acceptsBuffer?: boolean;
-
     (
         progress: number, // Float between 0 and 1.
         ...args: any[]
diff --git a/src/util/PostMessageConnector.ts b/src/util/PostMessageConnector.ts
index ca1333e10..8f8e22a49 100644
--- a/src/util/PostMessageConnector.ts
+++ b/src/util/PostMessageConnector.ts
@@ -6,7 +6,6 @@ export interface CancellableCallback {
   ): void;
 
   isCanceled?: boolean;
-  acceptsBuffer?: boolean;
 }
 
 type InitData = {
diff --git a/src/util/mediaLoader.ts b/src/util/mediaLoader.ts
index 1642ae98f..3722c866f 100644
--- a/src/util/mediaLoader.ts
+++ b/src/util/mediaLoader.ts
@@ -24,7 +24,6 @@ const asCacheApiType = {
   [ApiMediaFormat.Text]: cacheApi.Type.Text,
   [ApiMediaFormat.DownloadUrl]: undefined,
   [ApiMediaFormat.Progressive]: undefined,
-  [ApiMediaFormat.Stream]: undefined,
 };
 
 const PROGRESSIVE_URL_PREFIX = `${IS_ELECTRON ? ELECTRON_HOST_URL : '.'}/progressive/`;
@@ -157,29 +156,6 @@ async function fetchFromCacheOrRemote(
     }
   }
 
-  if (mediaFormat === ApiMediaFormat.Stream) {
-    const mediaSource = new MediaSource();
-    const streamUrl = URL.createObjectURL(mediaSource);
-    let isOpen = false;
-
-    mediaSource.addEventListener('sourceopen', () => {
-      if (isOpen) {
-        return;
-      }
-      isOpen = true;
-
-      const sourceBuffer = mediaSource.addSourceBuffer('audio/mpeg');
-
-      const onProgress = makeOnProgress(url, mediaSource, sourceBuffer);
-      cancellableCallbacks.set(url, onProgress);
-
-      void callApi('downloadMedia', { url, mediaFormat }, onProgress);
-    });
-
-    memoryCache.set(url, streamUrl);
-    return streamUrl;
-  }
-
   const onProgress = makeOnProgress(url);
   cancellableCallbacks.set(url, onProgress);
 
@@ -221,22 +197,12 @@ async function fetchFromCacheOrRemote(
   return prepared;
 }
 
-function makeOnProgress(url: string, mediaSource?: MediaSource, sourceBuffer?: SourceBuffer) {
-  const onProgress: ApiOnProgress = (progress: number, arrayBuffer: ArrayBuffer) => {
+function makeOnProgress(url: string) {
+  const onProgress: ApiOnProgress = (progress: number) => {
     progressCallbacks.get(url)?.forEach((callback) => {
       callback(progress);
       if (callback.isCanceled) onProgress.isCanceled = true;
     });
-
-    if (progress === 1) {
-      mediaSource?.endOfStream();
-    }
-
-    if (!arrayBuffer) {
-      return;
-    }
-
-    sourceBuffer?.appendBuffer(arrayBuffer);
   };
 
   return onProgress;