diff --git a/MediaType.cs b/MediaType.cs
index c1a31e9..971e06c 100644
--- a/MediaType.cs
+++ b/MediaType.cs
@@ -179,6 +179,8 @@ namespace Aaru.CommonTypes
         BDRXL = 63,
         /// <summary>BD-RE XL</summary>
         BDREXL = 64,
+        /// <summary>Ultra HD Blu-ray</summary>
+        UHDBD = 65,
         #endregion Standard Blu-ray formats, types 60 to 69
 
         #region Rare or uncommon optical standards, types 70 to 79
diff --git a/Metadata/Dimensions.cs b/Metadata/Dimensions.cs
index f08f1b0..8c42063 100644
--- a/Metadata/Dimensions.cs
+++ b/Metadata/Dimensions.cs
@@ -1027,6 +1027,7 @@ namespace Aaru.CommonTypes.Metadata
                 case CommonTypes.MediaType.Pippin:
                 case CommonTypes.MediaType.MilCD:
                 case CommonTypes.MediaType.CVD:
+                case CommonTypes.MediaType.UHDBD:
                     dmns.Diameter          = 120;
                     dmns.DiameterSpecified = true;
                     dmns.Thickness         = 1.2;
diff --git a/Metadata/MediaType.cs b/Metadata/MediaType.cs
index a094fcd..5111bb4 100644
--- a/Metadata/MediaType.cs
+++ b/Metadata/MediaType.cs
@@ -72,6 +72,11 @@ namespace Aaru.CommonTypes.Metadata
                     discType    = "Blu-ray";
                     discSubType = "BD-R XL";
 
+                    break;
+                case CommonTypes.MediaType.UHDBD:
+                    discType    = "Blu-ray";
+                    discSubType = "Ultra HD Blu-ray";
+
                     break;
                 case CommonTypes.MediaType.CBHD:
                     discType    = "Blu-ray";