diff --git a/index.html b/index.html
index 93b0f19..b16d67b 100644
--- a/index.html
+++ b/index.html
@@ -929,6 +929,20 @@ async function readAudioInfo(file) {
   } catch {}
   return info;
 }
+async function readDuration(file) {
+  try {
+    const url = URL.createObjectURL(file);
+    const dur = await new Promise((resolve) => {
+      const a = new Audio();
+      a.preload = 'metadata';
+      a.onloadedmetadata = () => { resolve(a.duration); };
+      a.onerror = () => { resolve(0); };
+      a.src = url;
+    });
+    URL.revokeObjectURL(url);
+    return isFinite(dur) && dur > 0 ? dur : 0;
+  } catch { return 0; }
+}
 async function processFiles(files, paths) {
   scanning.style.display = 'flex';
   const total = files.length;
@@ -940,7 +954,7 @@ async function processFiles(files, paths) {
     prog++;
     const url = URL.createObjectURL(file);
     const path = paths ? paths[i] : file.name;
-    const [tags, ainfo] = await Promise.all([readTags(file), readAudioInfo(file)]);
+    const [tags, ainfo, duration] = await Promise.all([readTags(file), readAudioInfo(file), readDuration(file)]);
     const name = tags.title || file.name.replace(/\.[^.]+$/, '');
     found.push({
       name,
@@ -958,7 +972,7 @@ async function processFiles(files, paths) {
       file,
       path,
       size: file.size,
-      playtime: 0,
+      playtime: duration,
       ainfo,
     });
     scanningText.textContent = `Processing ${prog}: ${name}`;