diff --git a/RELEASENOTES.md b/RELEASENOTES.md
index 4ec0650b4a..95cef53cd9 100644
--- a/RELEASENOTES.md
+++ b/RELEASENOTES.md
@@ -83,6 +83,8 @@
     *   Check state in RTSP setup when returning loading state of
         `RtspMediaPeriod`
         ([#577](https://github.com/androidx/media/issues/577)).
+    *   Ignore custom Rtsp request methods in Options response public header
+        ([#613](https://github.com/androidx/media/issues/613)).
 *   Decoder Extensions (FFmpeg, VP9, AV1, etc.):
 *   MIDI extension:
 *   Leanback extension:
diff --git a/libraries/exoplayer_rtsp/src/main/java/androidx/media3/exoplayer/rtsp/RtspMessageUtil.java b/libraries/exoplayer_rtsp/src/main/java/androidx/media3/exoplayer/rtsp/RtspMessageUtil.java
index ebdb61e91e..5942c824f7 100644
--- a/libraries/exoplayer_rtsp/src/main/java/androidx/media3/exoplayer/rtsp/RtspMessageUtil.java
+++ b/libraries/exoplayer_rtsp/src/main/java/androidx/media3/exoplayer/rtsp/RtspMessageUtil.java
@@ -285,7 +285,8 @@ public static String toMethodString(@RtspRequest.Method int method) {
       case "TEARDOWN":
         return METHOD_TEARDOWN;
       default:
-        throw new IllegalArgumentException();
+        // Return METHOD_UNSET for unknown Rtsp Request method.
+        return METHOD_UNSET;
     }
   }
 
@@ -388,7 +389,10 @@ public static ImmutableList<Integer> parsePublicHeader(@Nullable String publicHe
 
     ImmutableList.Builder<Integer> methodListBuilder = new ImmutableList.Builder<>();
     for (String method : Util.split(publicHeader, ",\\s?")) {
-      methodListBuilder.add(parseMethodString(method));
+      @RtspRequest.Method int rtspRequestMethod = parseMethodString(method);
+      if (rtspRequestMethod != METHOD_UNSET) {
+        methodListBuilder.add(rtspRequestMethod);
+      }
     }
     return methodListBuilder.build();
   }