diff --git a/persistence/artwork_hydration_test.go b/persistence/artwork_hydration_test.go
index cb90591d9..d9c80e054 100644
--- a/persistence/artwork_hydration_test.go
+++ b/persistence/artwork_hydration_test.go
@@ -249,6 +249,17 @@ var _ = Describe("Artwork hydration", func() {
 			Expect(byID["1003"].ImageAbsent).To(BeTrue())
 		})
 
+		It("does not stamp a found album hash onto a multi-disc track (its dc- id is disc-served)", func() {
+			putInfo("al", "104", "alh104foundxxxxx") // songs 2002/2004 album is found
+
+			byID := getByID()
+
+			// 2002 is multi-disc (DiscNumber>0); CoverArtID emits a dc- id served from disc art of
+			// unknown identity, so it must not advertise the album's hash as its content-version.
+			Expect(byID["2002"].ImageHash).To(BeEmpty())
+			Expect(byID["2002"].ImageAbsent).To(BeFalse())
+		})
+
 		It("keeps a multi-disc track requestable when its album is absent (disc art may resolve)", func() {
 			putInfo("al", "104", "") // songs 2002/2004 album known-absent
 
diff --git a/persistence/mediafile_repository.go b/persistence/mediafile_repository.go
index 401e485e8..4cc93f4dd 100644
--- a/persistence/mediafile_repository.go
+++ b/persistence/mediafile_repository.go
@@ -247,9 +247,14 @@ func (r *mediaFileRepository) hydrateArtwork(mfs model.MediaFiles) {
 			mf.ImageHash = ownInfo.Hash // own resolved art wins
 			continue
 		}
-		// Fallback (see MediaFile.CoverArtID): inherit a found album hash for optimistic caching.
+		// Fallback (see MediaFile.CoverArtID): inherit a found album hash for optimistic caching,
+		// but only for a single-disc track. A multi-disc track emits a dc- id served from
+		// disc-specific art of unknown identity, so stamping the album hash would advertise a
+		// wrong content-version; leave it bare (the served response still carries a correct ETag).
 		if album, ok := albumInfos[mf.AlbumID]; ok && !album.Absent() {
-			mf.ImageHash = album.Hash
+			if mf.DiscNumber == 0 {
+				mf.ImageHash = album.Hash
+			}
 			continue
 		}
 		// Nothing found. Mark absent only when serving would definitively yield a placeholder: