--- a/server/media-cache.js
+++ b/server/media-cache.js
@@ -226,7 +226,10 @@
     let { bytes } = await db.mediaStats();
     if (bytes + est > maxBytes) {
       const cutoff = now() - EVICT_PROTECT_MS;
-      for (const r of await db.listMediaLru()) {
+      // Retention order (plan 010) when the server provides it: copies that
+      // are neither top nor recent go first. Otherwise plain LRU.
+      const order = db.listMediaEvictionOrder ? await db.listMediaEvictionOrder() : await db.listMediaLru();
+      for (const r of order) {
         if (bytes + est <= maxBytes) break;
         if (r.video_id === id || r.last_access > cutoff || jobs.has(r.video_id) || optActive === r.video_id) continue;
         await evict(r.video_id, 'budget');
--- a/server/media-cache.test.js
+++ b/server/media-cache.test.js
@@ -240,6 +240,27 @@
     expect(await cache.getReady('lruAAAAAAA3')).not.toBeNull();
   });
 
+  test('eviction follows listMediaEvictionOrder when the db provides it', async () => {
+    await clearDb();
+    const size = readFileSync(fx('good.mp4')).length;
+    const db = {
+      getMedia: dbmod.getMedia, upsertMedia: dbmod.upsertMedia, deleteMedia: dbmod.deleteMedia,
+      listMedia: dbmod.listMedia, listMediaLru: dbmod.listMediaLru, touchMedia: dbmod.touchMedia,
+      mediaStats: dbmod.mediaStats,
+      // Retention says the MORE recently played #2 is the one to drop (e.g. no views).
+      listMediaEvictionOrder: async () => (await dbmod.listMediaLru()).reverse(),
+    };
+    const { cache } = makeCache({ db, maxBytes: size * 2 + 60 * 250 * 1024 + 50_000, duration: 10 });
+    await cache.init();
+    await cache.ensureCached('retAAAAAAA1', { priority: HIGH });
+    await cache.ensureCached('retAAAAAAA2', { priority: HIGH });
+    await dbmod.upsertMedia('retAAAAAAA1', { last_access: 1000 });
+    await dbmod.upsertMedia('retAAAAAAA2', { last_access: 2000 });
+    await cache.ensureCached('retAAAAAAA3', { priority: HIGH });
+    expect(await dbmod.getMedia('retAAAAAAA2')).toBeNull();
+    expect(await dbmod.getMedia('retAAAAAAA1')).not.toBeNull();
+  });
+
   test('free-disk guard skips caching', async () => {
     await clearDb();
     const { cache, calls } = makeCache({ freeBytes: () => 1024 ** 3, minFreeBytes: 5 * 1024 ** 3 });