diff --git a/chatgpt-suno-tampermonkey.user.js b/chatgpt-suno-tampermonkey.user.js
index 21c0a15..74c93e6 100644
--- a/chatgpt-suno-tampermonkey.user.js
+++ b/chatgpt-suno-tampermonkey.user.js
@@ -1,7 +1,7 @@
 // ==UserScript==
 // @name         ChatGPT to Suno Prompt Copier
 // @namespace    local.suno-helper
-// @version      0.8.3
+// @version      0.8.4
 // @description  Copy structured ChatGPT song prompt versions into Suno fields.
 // @author       local
 // @match        https://chatgpt.com/*
@@ -28,7 +28,7 @@
 (function () {
   "use strict";
 
-  const SCRIPT_VERSION = "0.8.3";
+  const SCRIPT_VERSION = "0.8.4";
   const STORAGE_KEY = "chatgptSunoPromptSlots";
   const SLOT_COUNT = 2;
   const isChatGPT = location.hostname.includes("chatgpt.com") || location.hostname.includes("chat.openai.com");
@@ -1470,7 +1470,8 @@
         <option value="">감지된 곡 없음</option>
       </select>
       <div class="cgs-row">
-        <button class="cgs-btn cgs-wide" type="button" data-cgs-process-one>선택 1곡 MP3</button>
+        <button class="cgs-btn cgs-wide" type="button" data-cgs-process-one-mp3>선택 1곡 MP3</button>
+        <button class="cgs-btn cgs-wide" type="button" data-cgs-process-one-wav>선택 1곡 WAV</button>
       </div>
       <div class="cgs-row">
         <button class="cgs-btn cgs-wide" type="button" data-cgs-test-companion>연결 테스트</button>
@@ -1479,7 +1480,10 @@
         <button class="cgs-btn cgs-wide" type="button" data-cgs-copy-diagnostics>진단 복사</button>
       </div>
       <div class="cgs-row">
-        <button class="cgs-btn cgs-primary cgs-wide" type="button" data-cgs-process-library>MP3 일괄 + 메타데이터</button>
+        <button class="cgs-btn cgs-primary cgs-wide" type="button" data-cgs-process-library-mp3>MP3 일괄 + 메타데이터</button>
+      </div>
+      <div class="cgs-row">
+        <button class="cgs-btn cgs-primary cgs-wide" type="button" data-cgs-process-library-wav>WAV 일괄 + FLAC 메타</button>
       </div>
       <div class="cgs-status"></div>
     `;
@@ -1548,7 +1552,7 @@
       setStatus(body, `${networkHint} 목록 새로고침이나 스크롤 후 다시 눌러봐. 화면 텍스트: ${visibleHints.join(", ")}`);
     });
 
-    body.querySelector("[data-cgs-process-one]").addEventListener("click", async () => {
+    const processSelectedTrack = async (format) => {
       if (!libraryTracks.length) {
         libraryTracks = scanSunoLibraryTracks();
         renderLibraryTrackSelect();
@@ -1561,24 +1565,40 @@
         return;
       }
       try {
-        const data = await uploadTrackToCompanion(track, body, "mp3");
-        setStatus(body, `선택 1곡 업로드 완료: ${track.title || track.id} / 대기 ${data.queued ?? "?"}개 / 처리 ${data.active || "대기"}`);
+        const data = await uploadTrackToCompanion(track, body, format);
+        setStatus(body, `선택 1곡 ${format.toUpperCase()} 업로드 완료: ${track.title || track.id} / 대기 ${data.queued ?? "?"}개 / 처리 ${data.active || "대기"}`);
       } catch (error) {
-        setStatus(body, `선택 1곡 처리 실패: ${error.message || error}`);
+        setStatus(body, `선택 1곡 ${format.toUpperCase()} 처리 실패: ${error.message || error}`);
       }
+    };
+
+    body.querySelector("[data-cgs-process-one-mp3]").addEventListener("click", async () => {
+      await processSelectedTrack("mp3");
     });
 
-    body.querySelector("[data-cgs-process-library]").addEventListener("click", async () => {
+    body.querySelector("[data-cgs-process-one-wav]").addEventListener("click", async () => {
+      await processSelectedTrack("wav");
+    });
+
+    const processLibraryTracks = async (format) => {
       if (!libraryTracks.length) {
         libraryTracks = scanSunoLibraryTracks();
         renderLibraryTrackSelect();
       }
       updateSummary();
       try {
-        await uploadTracksToCompanion(libraryTracks, body, "mp3");
+        await uploadTracksToCompanion(libraryTracks, body, format);
       } catch (error) {
-        setStatus(body, `MP3 일괄 처리 실패: ${error.message || error}`);
+        setStatus(body, `${format.toUpperCase()} 일괄 처리 실패: ${error.message || error}`);
       }
+    };
+
+    body.querySelector("[data-cgs-process-library-mp3]").addEventListener("click", async () => {
+      await processLibraryTracks("mp3");
+    });
+
+    body.querySelector("[data-cgs-process-library-wav]").addEventListener("click", async () => {
+      await processLibraryTracks("wav");
     });
 
     body.querySelector("[data-cgs-test-companion]").addEventListener("click", async () => {