diff --git a/source/Cosmos.System2/FileSystem/FAT/Listing/FatDirectoryEntryMetadata.cs b/source/Cosmos.System2/FileSystem/FAT/Listing/FatDirectoryEntryMetadata.cs
index 9418350dc..2d8efdf46 100644
--- a/source/Cosmos.System2/FileSystem/FAT/Listing/FatDirectoryEntryMetadata.cs
+++ b/source/Cosmos.System2/FileSystem/FAT/Listing/FatDirectoryEntryMetadata.cs
@@ -1,8 +1,17 @@
 namespace Cosmos.System.FileSystem.FAT.Listing
 {
+    /// <summary>
+    /// Fat directory entry metadata class.
+    /// </summary>
     public sealed class FatDirectoryEntryMetadata
     {
+        /// <summary>
+        /// Entry data offset.
+        /// </summary>
         public readonly uint DataOffset;
+        /// <summary>
+        /// Entry data length.
+        /// </summary>
         public readonly uint DataLength;
 
         private FatDirectoryEntryMetadata(uint aDataOffset, uint aDataLength)
@@ -11,30 +20,90 @@
             DataLength = aDataLength;
         }
 
+        /// <summary>
+        /// Directory entry first byte matadata.
+        /// </summary>
         public static readonly FatDirectoryEntryMetadata FirstByte = new FatDirectoryEntryMetadata(0x00, 1);
+        /// <summary>
+        /// Directory entry short name matadata.
+        /// </summary>
         public static readonly FatDirectoryEntryMetadata ShortName = new FatDirectoryEntryMetadata(0x00, 11);
+        /// <summary>
+        /// Directory entry attributes matadata.
+        /// </summary>
         public static readonly FatDirectoryEntryMetadata Attributes = new FatDirectoryEntryMetadata(0x0B, 1);
+        /// <summary>
+        /// Directory entry NTReserved matadata.
+        /// </summary>
         public static readonly FatDirectoryEntryMetadata NTReserved = new FatDirectoryEntryMetadata(0x0C, 1);
+        /// <summary>
+        /// Directory entry creation time tenths of a second matadata.
+        /// </summary>
         public static readonly FatDirectoryEntryMetadata CreationTimeTenthsOfASecond = new FatDirectoryEntryMetadata(0x0D, 1);
+        /// <summary>
+        /// Directory entry creation time matadata.
+        /// </summary>
         public static readonly FatDirectoryEntryMetadata CreationTime = new FatDirectoryEntryMetadata(0x0E, 2);
+        /// <summary>
+        /// Directory entry creation date matadata.
+        /// </summary>
         public static readonly FatDirectoryEntryMetadata CreationDate = new FatDirectoryEntryMetadata(0x10, 2);
+        /// <summary>
+        /// Directory entry last accessed date matadata.
+        /// </summary>
         public static readonly FatDirectoryEntryMetadata AccessedDate = new FatDirectoryEntryMetadata(0x12, 2);
+        /// <summary>
+        /// Directory entry first cluster high matadata.
+        /// </summary>
         public static readonly FatDirectoryEntryMetadata FirstClusterHigh = new FatDirectoryEntryMetadata(0x14, 2);
+        /// <summary>
+        /// Directory entry modified time matadata.
+        /// </summary>
         public static readonly FatDirectoryEntryMetadata ModifiedTime = new FatDirectoryEntryMetadata(0x16, 2);
+        /// <summary>
+        /// Directory entry modified date matadata.
+        /// </summary>
         public static readonly FatDirectoryEntryMetadata ModifiedDate = new FatDirectoryEntryMetadata(0x18, 2);
+        /// <summary>
+        /// Directory entry first cluster low matadata.
+        /// </summary>
         public static readonly FatDirectoryEntryMetadata FirstClusterLow = new FatDirectoryEntryMetadata(0x1A, 2);
+        /// <summary>
+        /// Directory entry size matadata.
+        /// </summary>
         public static readonly FatDirectoryEntryMetadata Size = new FatDirectoryEntryMetadata(0x1C, 4);
 
+        /// <summary>
+        /// Long filename entry metadata class. This class can not be inherited.
+        /// </summary>
         public sealed class LongFilenameEntryMetadata
         {
+            /// <summary>
+            /// Directory entry sequence number and allocation status matadata.
+            /// </summary>
             public static readonly FatDirectoryEntryMetadata SequenceNumberAndAllocationStatus = new FatDirectoryEntryMetadata(0x00, 1);
+            /// <summary>
+            /// Directory entry LongName1 matadata.
+            /// </summary>
             public static readonly FatDirectoryEntryMetadata LongName1 = new FatDirectoryEntryMetadata(0x01, 10);
+            /// <summary>
+            /// Directory entry attributes matadata.
+            /// </summary>
             public static readonly FatDirectoryEntryMetadata Attributes = new FatDirectoryEntryMetadata(0x0B, 1);
             //public static readonly FatDirectoryEntryMetadata Reserved1 = new FatDirectoryEntryMetadata(0x0C, 1);
+            /// <summary>
+            /// Directory entry checksum matadata.
+            /// </summary>
             public static readonly FatDirectoryEntryMetadata Checksum = new FatDirectoryEntryMetadata(0x0D, 1);
+            /// <summary>
+            /// Directory entry LongName2 matadata.
+            /// </summary>
             public static readonly FatDirectoryEntryMetadata LongName2 = new FatDirectoryEntryMetadata(0x0E, 12);
             //public static readonly FatDirectoryEntryMetadata Reserved2 = new FatDirectoryEntryMetadata(0x1A, 2);
+            /// <summary>
+            /// Directory entry LongName3 matadata.
+            /// </summary>
             public static readonly FatDirectoryEntryMetadata LongName3 = new FatDirectoryEntryMetadata(0x1C, 4);
         }
     }
-}
\ No newline at end of file
+}