diff --git a/app/services/ContentService.ts b/app/services/ContentService.ts
index d0b47e2..8ae264b 100644
--- a/app/services/ContentService.ts
+++ b/app/services/ContentService.ts
@@ -8,6 +8,7 @@ import { decodeSegment, YencCrcError, YencError, YencFile } from '#lib/yenc/inde
 import NzbImportService, { type NzbImportResult } from '#services/NzbImportService'
 import {
   isArchiveStart,
+  isLaterVolume,
   NICOVIDEO_FILE,
   NICOVIDEO_RELEASE,
   nicovideoInfo,
@@ -68,6 +69,8 @@ export interface ContentResult {
 class ContentService {
   /** Random or missing names, and named first RAR volumes (for contents and password flag). */
   isCandidate(name: string) {
+    // Even under a random stem: the first volume and the index .par2 are inspected instead.
+    if (isLaterVolume(name)) return false
     if (!looksLikeFilename(name) || looksRandom(fileStem(name))) return true
     if (isArchiveStart(name)) return true
     if (/\.nzb$/i.test(name)) return true
diff --git a/commands/workers/File.ts b/commands/workers/File.ts
index 5d07a1c..33bfb47 100644
--- a/commands/workers/File.ts
+++ b/commands/workers/File.ts
@@ -8,6 +8,7 @@ import SfvService from '#services/SfvService'
 import queueConfig from '#config/queue'
 import Shutdown from '#services/Shutdown'
 import QueueService from '#services/QueueService'
+import ContentService from '#services/ContentService'
 
 export default class FileWorker extends BaseCommand {
   public static commandName = 'worker:file'
@@ -94,7 +95,10 @@ export default class FileWorker extends BaseCommand {
         date: binary.posted_at ? new Date(binary.posted_at).getTime() : null,
         release_id: binary.release_id,
       })
-      await collectionQueue.add('process-collection', { fileId }, { jobId: `file-${fileId}` })
+      // Files inspection would skip anyway (later volumes, readable media names) don't take a queue slot.
+      if (ContentService.isCandidate(binary.name)) {
+        await collectionQueue.add('process-collection', { fileId }, { jobId: `file-${fileId}` })
+      }
     }, {
       connection: queueConfig.connection,
       // One job at a time could not keep up with the backfill (130k waiting); jobs are per binary and
diff --git a/lib/content/archive_names.ts b/lib/content/archive_names.ts
index 60a0841..2727ef9 100644
--- a/lib/content/archive_names.ts
+++ b/lib/content/archive_names.ts
@@ -11,3 +11,15 @@ export function isArchiveStart(name: string): boolean {
   if (volume === 0 || volume === 1) return true
   return /\.part0*1\.rar$/i.test(name) || (/\.rar$/i.test(name) && !/\.part\d+\.rar$/i.test(name))
 }
+
+/**
+ * A later RAR volume (.part02.rar, .r00) or a par2 recovery volume
+ * (.vol03+04.par2): the volume number is readable even under a random stem.
+ * The set is listed from its first volume and named from its index .par2,
+ * so the first segment of these says nothing new (LOG.md 2026-10-04).
+ */
+export function isLaterVolume(name: string): boolean {
+  const part = /\.part(\d+)\.rar$/i.exec(name)
+  if (part) return Number(part[1]) > 1
+  return /\.r\d{2,3}$/i.test(name) || /\.vol\d+[+-]\d+\.par2$/i.test(name)
+}
diff --git a/lib/content/index.ts b/lib/content/index.ts
index eb8702b..adbb5e7 100644
--- a/lib/content/index.ts
+++ b/lib/content/index.ts
@@ -2,6 +2,6 @@
  * Content recognition by magic bytes, independent of AdonisJS.
  */
 export { sniffContentType, type ContentType } from './sniff.js'
-export { isArchiveStart } from './archive_names.js'
+export { isArchiveStart, isLaterVolume } from './archive_names.js'
 export { parseSfv, sfvReleaseName, type SfvEntry } from './sfv.js'
 export { NICOVIDEO_FILE, NICOVIDEO_RELEASE, nicovideoInfo, nicovideoReleaseName, zstdPrefix, tarEntries, type NicovideoInfo } from './nicovideo.js'
diff --git a/tests/unit/content.spec.ts b/tests/unit/content.spec.ts
index 2a913ce..f99f2d6 100644
--- a/tests/unit/content.spec.ts
+++ b/tests/unit/content.spec.ts
@@ -1,6 +1,6 @@
 import { test } from '@japa/runner'
 import yencode from 'yencode'
-import { sniffContentType } from '#lib/content/index'
+import { isLaterVolume, sniffContentType } from '#lib/content/index'
 import { crc32Hex, decodeSegment, YencError } from '#lib/yenc/index'
 
 test.group('content / sniffContentType', () => {
@@ -52,3 +52,14 @@ test.group('yenc / lenientSize', () => {
     assert.isTrue(decodeSegment(body, { lenientSize: true }).data.equals(data))
   })
 })
+
+test.group('content / isLaterVolume', () => {
+  test('recognises later RAR volumes and par2 recovery volumes, also under a random stem', ({ assert }) => {
+    for (const name of ['P8vttYaPec1mL4nDZHPZo7Nd6iEWj8lP.part47.rar', 'Show.S01E01.part002.rar', 'abc.r00', 'abc.r123', 'x7Kq9.vol03+04.par2', 'Show.vol127-128.par2']) {
+      assert.isTrue(isLaterVolume(name), name)
+    }
+    for (const name of ['P8vttYaPec1mL4nDZHPZo7Nd6iEWj8lP.part01.rar', 'abc.part1.rar', 'abc.rar', 'x7Kq9.par2', '6e13186238ab54ca498e46d2d77da099', 'abc.7z.002', 'abc.mkv']) {
+      assert.isFalse(isLaterVolume(name), name)
+    }
+  })
+})