diff --git a/package-lock.json b/package-lock.json
index d7fa06d..9beda0c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "real-debrid-downloader",
-  "version": "1.4.16",
+  "version": "1.4.19",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "real-debrid-downloader",
-      "version": "1.4.16",
+      "version": "1.4.19",
       "license": "MIT",
       "dependencies": {
         "adm-zip": "^0.5.16",
diff --git a/package.json b/package.json
index 5715e06..18da2f1 100644
--- a/package.json
+++ b/package.json
@@ -1,10 +1,11 @@
 {
   "name": "real-debrid-downloader",
-  "version": "1.4.18",
+  "version": "1.4.19",
   "description": "Real-Debrid Downloader Desktop (Electron + React + TypeScript)",
   "main": "build/main/main/main.js",
   "author": "Sucukdeluxe",
   "license": "MIT",
+  "type": "module",
   "scripts": {
     "dev": "concurrently -k \"npm:dev:main:watch\" \"npm:dev:renderer\" \"npm:dev:electron\"",
     "dev:renderer": "vite",
diff --git a/src/main/constants.ts b/src/main/constants.ts
index ad387f4..3e277cc 100644
--- a/src/main/constants.ts
+++ b/src/main/constants.ts
@@ -42,6 +42,7 @@ export function defaultSettings(): AppSettings {
     outputDir: baseDir,
     packageName: "",
     autoExtract: true,
+    autoRename4sf4sj: false,
     extractDir: path.join(baseDir, "_entpackt"),
     createExtractSubfolder: true,
     hybridExtract: true,
diff --git a/src/main/download-manager.ts b/src/main/download-manager.ts
index 92c3fc6..77a0cd8 100644
--- a/src/main/download-manager.ts
+++ b/src/main/download-manager.ts
@@ -17,7 +17,7 @@ import {
   StartConflictResolutionResult,
   UiSnapshot
 } from "../shared/types";
-import { REQUEST_RETRIES } from "./constants";
+import { REQUEST_RETRIES, SAMPLE_VIDEO_EXTENSIONS } from "./constants";
 import { cleanupCancelledPackageArtifactsAsync } from "./cleanup";
 import { DebridService, MegaWebUnrestrictor } from "./debrid";
 import { collectArchiveCleanupTargets, extractPackageArchives } from "./extractor";
@@ -194,6 +194,95 @@ function isPathInsideDir(filePath: string, dirPath: string): boolean {
   return file.startsWith(withSep);
 }
 
+const SCENE_RELEASE_FOLDER_RE = /-(?:4sf|4sj)$/i;
+const SCENE_EPISODE_RE = /(?:^|[._\-\s])s(\d{1,2})e(\d{1,3})(?:[._\-\s]|$)/i;
+const SCENE_SEASON_ONLY_RE = /(^|[._\-\s])s\d{1,2}(?=[._\-\s]|$)/i;
+const SCENE_RP_TOKEN_RE = /(?:^|[._\-\s])rp(?:[._\-\s]|$)/i;
+const SCENE_REPACK_TOKEN_RE = /(?:^|[._\-\s])repack(?:[._\-\s]|$)/i;
+const SCENE_QUALITY_TOKEN_RE = /([._\-\s])((?:4320|2160|1440|1080|720|576|540|480|360)p)(?=[._\-\s]|$)/i;
+
+function extractEpisodeToken(fileName: string): string | null {
+  const match = String(fileName || "").match(SCENE_EPISODE_RE);
+  if (!match) {
+    return null;
+  }
+
+  const season = Number(match[1]);
+  const episode = Number(match[2]);
+  if (!Number.isFinite(season) || !Number.isFinite(episode) || season < 0 || episode < 0) {
+    return null;
+  }
+
+  return `S${String(season).padStart(2, "0")}E${String(episode).padStart(2, "0")}`;
+}
+
+function applyEpisodeTokenToFolderName(folderName: string, episodeToken: string): string {
+  const trimmed = String(folderName || "").trim();
+  if (!trimmed) {
+    return episodeToken;
+  }
+
+  const withEpisode = trimmed.replace(
+    /(^|[._\-\s])s\d{1,2}e\d{1,3}(?=[._\-\s]|$)/i,
+    `$1${episodeToken}`
+  );
+  if (withEpisode !== trimmed) {
+    return withEpisode;
+  }
+
+  const withSeason = trimmed.replace(SCENE_SEASON_ONLY_RE, `$1${episodeToken}`);
+  if (withSeason !== trimmed) {
+    return withSeason;
+  }
+
+  const withSuffixInsert = trimmed.replace(/-(4sf|4sj)$/i, `.${episodeToken}-$1`);
+  if (withSuffixInsert !== trimmed) {
+    return withSuffixInsert;
+  }
+
+  return `${trimmed}.${episodeToken}`;
+}
+
+function sourceHasRpToken(fileName: string): boolean {
+  return SCENE_RP_TOKEN_RE.test(String(fileName || ""));
+}
+
+function ensureRepackToken(baseName: string): string {
+  if (SCENE_REPACK_TOKEN_RE.test(baseName)) {
+    return baseName;
+  }
+
+  const withQualityToken = baseName.replace(SCENE_QUALITY_TOKEN_RE, ".REPACK.$2");
+  if (withQualityToken !== baseName) {
+    return withQualityToken;
+  }
+
+  const withSuffixToken = baseName.replace(/-(4sf|4sj)$/i, ".REPACK-$1");
+  if (withSuffixToken !== baseName) {
+    return withSuffixToken;
+  }
+
+  return `${baseName}.REPACK`;
+}
+
+function buildAutoRenameBaseName(folderName: string, sourceFileName: string): string | null {
+  if (!SCENE_RELEASE_FOLDER_RE.test(folderName)) {
+    return null;
+  }
+
+  const episodeToken = extractEpisodeToken(sourceFileName);
+  if (!episodeToken) {
+    return null;
+  }
+
+  let next = applyEpisodeTokenToFolderName(folderName, episodeToken);
+  if (sourceHasRpToken(sourceFileName)) {
+    next = ensureRepackToken(next);
+  }
+
+  return sanitizeFilename(next);
+}
+
 export class DownloadManager extends EventEmitter {
   private settings: AppSettings;
 
@@ -1015,6 +1104,83 @@ export class DownloadManager extends EventEmitter {
     return removed;
   }
 
+  private collectVideoFiles(rootDir: string): string[] {
+    if (!rootDir || !fs.existsSync(rootDir)) {
+      return [];
+    }
+
+    const files: string[] = [];
+    const stack = [rootDir];
+    while (stack.length > 0) {
+      const current = stack.pop() as string;
+      let entries: fs.Dirent[] = [];
+      try {
+        entries = fs.readdirSync(current, { withFileTypes: true });
+      } catch {
+        continue;
+      }
+
+      for (const entry of entries) {
+        const fullPath = path.join(current, entry.name);
+        if (entry.isDirectory()) {
+          stack.push(fullPath);
+          continue;
+        }
+        if (!entry.isFile()) {
+          continue;
+        }
+        const extension = path.extname(entry.name).toLowerCase();
+        if (!SAMPLE_VIDEO_EXTENSIONS.has(extension)) {
+          continue;
+        }
+        files.push(fullPath);
+      }
+    }
+
+    return files;
+  }
+
+  private autoRenameExtractedVideoFiles(extractDir: string): number {
+    if (!this.settings.autoRename4sf4sj) {
+      return 0;
+    }
+
+    const videoFiles = this.collectVideoFiles(extractDir);
+    let renamed = 0;
+
+    for (const sourcePath of videoFiles) {
+      const sourceName = path.basename(sourcePath);
+      const sourceExt = path.extname(sourceName);
+      const sourceBaseName = path.basename(sourceName, sourceExt);
+      const folderName = path.basename(path.dirname(sourcePath));
+      const targetBaseName = buildAutoRenameBaseName(folderName, sourceBaseName);
+      if (!targetBaseName) {
+        continue;
+      }
+
+      const targetPath = path.join(path.dirname(sourcePath), `${targetBaseName}${sourceExt}`);
+      if (pathKey(targetPath) === pathKey(sourcePath)) {
+        continue;
+      }
+      if (fs.existsSync(targetPath)) {
+        logger.warn(`Auto-Rename übersprungen (Ziel existiert): ${targetPath}`);
+        continue;
+      }
+
+      try {
+        fs.renameSync(sourcePath, targetPath);
+        renamed += 1;
+      } catch (error) {
+        logger.warn(`Auto-Rename fehlgeschlagen (${sourceName}): ${compactErrorText(error)}`);
+      }
+    }
+
+    if (renamed > 0) {
+      logger.info(`Auto-Rename (4SF/4SJ): ${renamed} Datei(en) umbenannt`);
+    }
+    return renamed;
+  }
+
   public cancelPackage(packageId: string): void {
     const pkg = this.session.packages[packageId];
     if (!pkg) {
@@ -2827,6 +2993,9 @@ export class DownloadManager extends EventEmitter {
           pkg.status = "failed";
         } else {
           const hasExtractedOutput = this.directoryHasAnyFiles(pkg.extractDir);
+          if (result.extracted > 0 || hasExtractedOutput) {
+            this.autoRenameExtractedVideoFiles(pkg.extractDir);
+          }
           const sourceExists = fs.existsSync(pkg.outputDir);
           let finalStatusText = "";
 
diff --git a/src/main/storage.ts b/src/main/storage.ts
index 8f8cd5d..8f206a5 100644
--- a/src/main/storage.ts
+++ b/src/main/storage.ts
@@ -62,6 +62,7 @@ export function normalizeSettings(settings: AppSettings): AppSettings {
     outputDir: asText(settings.outputDir) || defaults.outputDir,
     packageName: asText(settings.packageName),
     autoExtract: Boolean(settings.autoExtract),
+    autoRename4sf4sj: Boolean(settings.autoRename4sf4sj),
     extractDir: asText(settings.extractDir) || defaults.extractDir,
     createExtractSubfolder: Boolean(settings.createExtractSubfolder),
     hybridExtract: Boolean(settings.hybridExtract),
diff --git a/src/renderer/App.tsx b/src/renderer/App.tsx
index 00b4198..1f36dbc 100644
--- a/src/renderer/App.tsx
+++ b/src/renderer/App.tsx
@@ -40,7 +40,7 @@ const emptySnapshot = (): UiSnapshot => ({
     archivePasswordList: "",
     rememberToken: true, providerPrimary: "realdebrid", providerSecondary: "megadebrid",
     providerTertiary: "bestdebrid", autoProviderFallback: true, outputDir: "", packageName: "",
-    autoExtract: true, extractDir: "", createExtractSubfolder: true, hybridExtract: true,
+    autoExtract: true, autoRename4sf4sj: false, extractDir: "", createExtractSubfolder: true, hybridExtract: true,
     cleanupMode: "none", extractConflictMode: "overwrite", removeLinkFilesAfterExtract: false,
     removeSamplesAfterExtract: false, enableIntegrityCheck: true, autoResumeOnStart: true,
     autoReconnect: false, reconnectWaitSeconds: 45, completedCleanupPolicy: "never",
@@ -971,6 +971,7 @@ export function App(): ReactElement {
                   <button className="btn" onClick={() => { void performQuickAction(async () => { const s = await window.rd.pickFolder(); if (s) { setText("extractDir", s); } }); }}>Wählen</button>
                 </div>
                 <label className="toggle-line"><input type="checkbox" checked={settingsDraft.autoExtract} onChange={(e) => setBool("autoExtract", e.target.checked)} /> Auto-Extract</label>
+                <label className="toggle-line"><input type="checkbox" checked={settingsDraft.autoRename4sf4sj} onChange={(e) => setBool("autoRename4sf4sj", e.target.checked)} /> Auto-Rename (4SF/4SJ)</label>
                 <label className="toggle-line"><input type="checkbox" checked={settingsDraft.hybridExtract} onChange={(e) => setBool("hybridExtract", e.target.checked)} /> Hybrid-Extract</label>
                 <label>Passwortliste (eine Zeile pro Passwort)</label>
                 <textarea
diff --git a/src/shared/types.ts b/src/shared/types.ts
index 677d2b9..6b4c6fc 100644
--- a/src/shared/types.ts
+++ b/src/shared/types.ts
@@ -47,6 +47,7 @@ export interface AppSettings {
   outputDir: string;
   packageName: string;
   autoExtract: boolean;
+  autoRename4sf4sj: boolean;
   extractDir: string;
   createExtractSubfolder: boolean;
   hybridExtract: boolean;
diff --git a/tests/download-manager.test.ts b/tests/download-manager.test.ts
index 8ecb88c..151d4cc 100644
--- a/tests/download-manager.test.ts
+++ b/tests/download-manager.test.ts
@@ -30,6 +30,72 @@ afterEach(() => {
 });
 
 describe("download manager", () => {
+  function createCompletedArchiveSession(root: string, packageName: string, extractedFileName: string): {
+    session: ReturnType<typeof emptySession>;
+    packageId: string;
+    itemId: string;
+    outputDir: string;
+    extractDir: string;
+    originalExtractedPath: string;
+  } {
+    const outputDir = path.join(root, "downloads", packageName);
+    const extractDir = path.join(root, "extract", packageName);
+    fs.mkdirSync(outputDir, { recursive: true });
+
+    const zip = new AdmZip();
+    zip.addFile(extractedFileName, Buffer.from("video"));
+    const archivePath = path.join(outputDir, "episode.zip");
+    zip.writeZip(archivePath);
+    const archiveSize = fs.statSync(archivePath).size;
+
+    const session = emptySession();
+    const packageId = `${packageName}-pkg`;
+    const itemId = `${packageName}-item`;
+    const createdAt = Date.now() - 20_000;
+    session.packageOrder = [packageId];
+    session.packages[packageId] = {
+      id: packageId,
+      name: packageName,
+      outputDir,
+      extractDir,
+      status: "downloading",
+      itemIds: [itemId],
+      cancelled: false,
+      enabled: true,
+      createdAt,
+      updatedAt: createdAt
+    };
+    session.items[itemId] = {
+      id: itemId,
+      packageId,
+      url: `https://dummy/${packageName}`,
+      provider: "realdebrid",
+      status: "completed",
+      retries: 0,
+      speedBps: 0,
+      downloadedBytes: archiveSize,
+      totalBytes: archiveSize,
+      progressPercent: 100,
+      fileName: "episode.zip",
+      targetPath: archivePath,
+      resumable: true,
+      attempts: 1,
+      lastError: "",
+      fullStatus: "Fertig (100 MB)",
+      createdAt,
+      updatedAt: createdAt
+    };
+
+    return {
+      session,
+      packageId,
+      itemId,
+      outputDir,
+      extractDir,
+      originalExtractedPath: path.join(extractDir, extractedFileName)
+    };
+  }
+
   it("retries interrupted streams and resumes download", async () => {
     const root = fs.mkdtempSync(path.join(os.tmpdir(), "rd-dm-"));
     tempDirs.push(root);
@@ -3569,4 +3635,125 @@ describe("download manager", () => {
     expect(snapshot.session.packages[packageId]?.status).toBe("completed");
     expect(snapshot.session.items[itemId]?.fullStatus).toBe("Entpackt (Quelle fehlt)");
   });
+
+  it("auto-renames extracted 4SF scene files to folder format", async () => {
+    const root = fs.mkdtempSync(path.join(os.tmpdir(), "rd-dm-"));
+    tempDirs.push(root);
+
+    const packageName = "Asbest.S02.GERMAN.720p.WEB.AVC-4SF";
+    const sourceFileName = "4sf-asbest.web.7p-s02e01.mkv";
+    const expectedFileName = "Asbest.S02E01.GERMAN.720p.WEB.AVC-4SF.mkv";
+    const { session, packageId, itemId, extractDir, originalExtractedPath } = createCompletedArchiveSession(root, packageName, sourceFileName);
+
+    const manager = new DownloadManager(
+      {
+        ...defaultSettings(),
+        token: "rd-token",
+        outputDir: path.join(root, "downloads"),
+        extractDir: path.join(root, "extract"),
+        autoExtract: true,
+        autoRename4sf4sj: true,
+        enableIntegrityCheck: false,
+        cleanupMode: "none"
+      },
+      session,
+      createStoragePaths(path.join(root, "state"))
+    );
+
+    const expectedPath = path.join(extractDir, expectedFileName);
+    await waitFor(() => fs.existsSync(expectedPath), 12000);
+    const snapshot = manager.getSnapshot();
+    expect(snapshot.session.packages[packageId]?.status).toBe("completed");
+    expect(snapshot.session.items[itemId]?.fullStatus).toBe("Entpackt");
+    expect(fs.existsSync(expectedPath)).toBe(true);
+    expect(fs.existsSync(originalExtractedPath)).toBe(false);
+  });
+
+  it("adds REPACK marker from rp token and supports 4SJ folders", async () => {
+    const root = fs.mkdtempSync(path.join(os.tmpdir(), "rd-dm-"));
+    tempDirs.push(root);
+
+    const packageName = "Asbest.S02.GERMAN.720p.WEB.AVC-4SJ";
+    const sourceFileName = "4sf-asbest.rp.web.7p-s02e01.mkv";
+    const expectedFileName = "Asbest.S02E01.GERMAN.REPACK.720p.WEB.AVC-4SJ.mkv";
+    const { session, itemId, extractDir, originalExtractedPath } = createCompletedArchiveSession(root, packageName, sourceFileName);
+
+    new DownloadManager(
+      {
+        ...defaultSettings(),
+        token: "rd-token",
+        outputDir: path.join(root, "downloads"),
+        extractDir: path.join(root, "extract"),
+        autoExtract: true,
+        autoRename4sf4sj: true,
+        enableIntegrityCheck: false,
+        cleanupMode: "none"
+      },
+      session,
+      createStoragePaths(path.join(root, "state"))
+    );
+
+    const expectedPath = path.join(extractDir, expectedFileName);
+    await waitFor(() => fs.existsSync(expectedPath), 12000);
+    expect(fs.existsSync(expectedPath)).toBe(true);
+    expect(fs.existsSync(originalExtractedPath)).toBe(false);
+  });
+
+  it("skips auto-rename when no SxxExx token exists in source filename", async () => {
+    const root = fs.mkdtempSync(path.join(os.tmpdir(), "rd-dm-"));
+    tempDirs.push(root);
+
+    const packageName = "Asbest.S02.GERMAN.720p.WEB.AVC-4SF";
+    const sourceFileName = "4sf-asbest.rp.web.7p-episode.mkv";
+    const unexpectedName = "Asbest.S02.GERMAN.REPACK.720p.WEB.AVC-4SF.mkv";
+    const { session, itemId, extractDir, originalExtractedPath } = createCompletedArchiveSession(root, packageName, sourceFileName);
+
+    const manager = new DownloadManager(
+      {
+        ...defaultSettings(),
+        token: "rd-token",
+        outputDir: path.join(root, "downloads"),
+        extractDir: path.join(root, "extract"),
+        autoExtract: true,
+        autoRename4sf4sj: true,
+        enableIntegrityCheck: false,
+        cleanupMode: "none"
+      },
+      session,
+      createStoragePaths(path.join(root, "state"))
+    );
+
+    await waitFor(() => manager.getSnapshot().session.items[itemId]?.fullStatus.startsWith("Entpackt"), 12000);
+    expect(fs.existsSync(originalExtractedPath)).toBe(true);
+    expect(fs.existsSync(path.join(extractDir, unexpectedName))).toBe(false);
+  });
+
+  it("does not rename extracted scene files when auto-rename is disabled", async () => {
+    const root = fs.mkdtempSync(path.join(os.tmpdir(), "rd-dm-"));
+    tempDirs.push(root);
+
+    const packageName = "Asbest.S02.GERMAN.720p.WEB.AVC-4SF";
+    const sourceFileName = "4sf-asbest.web.7p-s02e01.mkv";
+    const unexpectedName = "Asbest.S02E01.GERMAN.720p.WEB.AVC-4SF.mkv";
+    const { session, itemId, extractDir, originalExtractedPath } = createCompletedArchiveSession(root, packageName, sourceFileName);
+
+    const manager = new DownloadManager(
+      {
+        ...defaultSettings(),
+        token: "rd-token",
+        outputDir: path.join(root, "downloads"),
+        extractDir: path.join(root, "extract"),
+        autoExtract: true,
+        autoRename4sf4sj: false,
+        enableIntegrityCheck: false,
+        cleanupMode: "none"
+      },
+      session,
+      createStoragePaths(path.join(root, "state"))
+    );
+
+    await waitFor(() => manager.getSnapshot().session.items[itemId]?.fullStatus.startsWith("Entpackt"), 12000);
+    expect(fs.existsSync(originalExtractedPath)).toBe(true);
+    expect(fs.existsSync(path.join(extractDir, unexpectedName))).toBe(false);
+  });
 });