diff --git a/MediaType.cs b/MediaType.cs
index b92640b..0f20bfa 100644
--- a/MediaType.cs
+++ b/MediaType.cs
@@ -269,6 +269,7 @@ namespace DiscImageChef.CommonTypes
         /// <summary>Sega/Yamaha recordable Gigabyte Disc</summary>
         GDR = 153,
         SegaCard = 154,
+        MilCD = 155,
         #endregion Sega game media, types 150 to 169
 
         #region Other game media, types 170 to 179
diff --git a/Metadata/Dimensions.cs b/Metadata/Dimensions.cs
index 7c4742b..c2b2d0d 100644
--- a/Metadata/Dimensions.cs
+++ b/Metadata/Dimensions.cs
@@ -892,6 +892,7 @@ namespace DiscImageChef.CommonTypes.Metadata
                 case CommonTypes.MediaType.Nuon:
                 case CommonTypes.MediaType.Playdia:
                 case CommonTypes.MediaType.Pippin:
+                case CommonTypes.MediaType.MilCD:
                     dmns.Diameter          = 120;
                     dmns.DiameterSpecified = true;
                     dmns.Thickness         = 1.2;
diff --git a/Metadata/MediaType.cs b/Metadata/MediaType.cs
index c19e248..5f420ae 100644
--- a/Metadata/MediaType.cs
+++ b/Metadata/MediaType.cs
@@ -718,6 +718,10 @@ namespace DiscImageChef.CommonTypes.Metadata
                     discType    = "Compact Disc";
                     discSubType = "Atari Jaguar CD";
                     break;
+                case CommonTypes.MediaType.JaguarCD:
+                    discType    = "Compact Disc";
+                    discSubType = "Sega MilCD";
+                    break;
                 case CommonTypes.MediaType.ThreeDO:
                     discType    = "Compact Disc";
                     discSubType = "3DO";