diff --git a/libraries/test_data/src/test/assets/media/mp4/sample_with_increasing_timestamps_320w_240h_fragmented.mp4 b/libraries/test_data/src/test/assets/media/mp4/sample_with_increasing_timestamps_320w_240h_fragmented.mp4
new file mode 100644
index 0000000000..48ea321031
Binary files /dev/null and b/libraries/test_data/src/test/assets/media/mp4/sample_with_increasing_timestamps_320w_240h_fragmented.mp4 differ
diff --git a/libraries/transformer/src/test/java/androidx/media3/transformer/TestUtil.java b/libraries/transformer/src/test/java/androidx/media3/transformer/TestUtil.java
index 8477c798fc..d1fba68541 100644
--- a/libraries/transformer/src/test/java/androidx/media3/transformer/TestUtil.java
+++ b/libraries/transformer/src/test/java/androidx/media3/transformer/TestUtil.java
@@ -53,7 +53,8 @@ public final class TestUtil {
   public static final String FILE_AUDIO_AMR_WB = "amr/sample_wb.amr";
   public static final String FILE_AUDIO_AMR_NB = "amr/sample_nb.amr";
   public static final String FILE_AUDIO_AC3_UNSUPPORTED_BY_MUXER = "mp4/sample_ac3.mp4";
-  public static final String FILE_UNKNOWN_DURATION = "mp4/sample_fragmented.mp4";
+  public static final String FILE_UNKNOWN_DURATION =
+      "mp4/sample_with_increasing_timestamps_320w_240h_fragmented.mp4";
   public static final String FILE_AUDIO_ELST_SKIP_500MS = "mp4/long_edit_list_audioonly.mp4";
   public static final String FILE_VIDEO_ELST_TRIM_IDR_DURATION =
       "mp4/iibbibb_editlist_videoonly.mp4";