diff --git a/MediaType.cs b/MediaType.cs
index fabb603c7..873d26737 100644
--- a/MediaType.cs
+++ b/MediaType.cs
@@ -280,8 +280,9 @@ public enum MediaType : uint
     /// <summary>Sega/Yamaha Gigabyte Disc</summary>
     GDROM = 152,
     /// <summary>Sega/Yamaha recordable Gigabyte Disc</summary>
-    GDR = 153, SegaCard = 154, MilCD             = 155, MegaDriveCartridge = 156,
-    _32XCartridge       = 157, SegaPicoCartridge = 158,
+    GDR = 153, SegaCard = 154, MilCD               = 155, MegaDriveCartridge    = 156,
+    _32XCartridge       = 157, SegaPicoCartridge   = 158, MasterSystemCartridge = 159,
+    GameGearCartridge   = 160, SegaSaturnCartridge = 161,
     #endregion Sega game media, types 150 to 169
 
     #region Other game media, types 170 to 179
diff --git a/MediaType.csv b/MediaType.csv
index 3077e0304..f35a8a29e 100644
--- a/MediaType.csv
+++ b/MediaType.csv
@@ -104,6 +104,9 @@ Enum,Value,Summary
 "MegaDriveCartridge",156,
 "_32XCartridge",157,
 "SegaPicoCartridge",158,
+"MasterSystemCartridge",159,
+"GameGearCartridge",160,
+"SegaSaturnCartridge",161,
 "HuCard",170,"PC-Engine / TurboGrafx cartridge"
 "SuperCDROM2",171,"PC-Engine / TurboGrafx CD"
 "JaguarCD",172,"Atari Jaguar CD"