diff --git a/headers/os/media/MediaFormats.h b/headers/os/media/MediaFormats.h
index 56f4dc0c57..bbc52f6ae5 100644
--- a/headers/os/media/MediaFormats.h
+++ b/headers/os/media/MediaFormats.h
@@ -92,7 +92,14 @@ enum mpeg_id {
 	B_MPEG_1_AUDIO_LAYER_1 = 0x101,
 	B_MPEG_1_AUDIO_LAYER_2 = 0x102,
 	B_MPEG_1_AUDIO_LAYER_3 = 0x103,		//	"MP3"
-	B_MPEG_1_VIDEO = 0x111
+	B_MPEG_1_VIDEO = 0x111,
+	B_MPEG_2_AUDIO_LAYER_1 = 0x201,
+	B_MPEG_2_AUDIO_LAYER_2 = 0x202,
+	B_MPEG_2_AUDIO_LAYER_3 = 0x203,
+	B_MPEG_2_VIDEO = 0x211,
+	B_MPEG_2_5_AUDIO_LAYER_1 = 0x301,
+	B_MPEG_2_5_AUDIO_LAYER_2 = 0x302,
+	B_MPEG_2_5_AUDIO_LAYER_3 = 0x303,
 };
 typedef struct {
 	uint32 id;