diff --git a/SabreTools.Serialization/Models/SecuROM/AddD.cs b/SabreTools.Serialization/Models/SecuROM/AddD.cs
index d9b64d62..533c8f3b 100644
--- a/SabreTools.Serialization/Models/SecuROM/AddD.cs
+++ b/SabreTools.Serialization/Models/SecuROM/AddD.cs
@@ -13,7 +13,7 @@
         /// <summary>
         /// "AddD"
         /// </summary>
-        public string? Signature { get; set; }
+        public string Signature { get; set; }
 
         /// <summary>s
         /// Entry count
@@ -24,13 +24,13 @@
         /// Version, null-terminated
         /// </summary>
         /// <remarks>Always 8 bytes?</remarks>
-        public string? Version { get; set; }
+        public string Version { get; set; }
 
         /// <summary>
         /// Build number
         /// </summary>
         /// <remarks>4 bytes</remarks>
-        public string? Build { get; set; }
+        public string Build { get; set; }
 
         /// <summary>
         /// Unknown
@@ -44,7 +44,7 @@
         /// <remarks>
         /// 10 bytes, only present in 4.84.00.0054, 4.84.69.0037, 4.84.76.7966, 4.84.76.7968, 4.85.07.0009
         /// </remarks>
-        public string? ProductId { get; set; }
+        public string ProductId { get; set; }
 
         /// <summary>
         /// Unknown
@@ -57,6 +57,6 @@
         /// <summary>
         /// Entry table
         /// </summary>
-        public AddDEntry[]? Entries { get; set; }
+        public AddDEntry[] Entries { get; set; }
     }
 }
diff --git a/SabreTools.Serialization/Models/SecuROM/AddDEntry.cs b/SabreTools.Serialization/Models/SecuROM/AddDEntry.cs
index cfea2587..6ee676ab 100644
--- a/SabreTools.Serialization/Models/SecuROM/AddDEntry.cs
+++ b/SabreTools.Serialization/Models/SecuROM/AddDEntry.cs
@@ -112,7 +112,7 @@ namespace SabreTools.Data.Models.SecuROM
         /// </summary>
         /// <remarks>12 bytes long in all samples</remarks>
         [MarshalAs(UnmanagedType.LPStr)]
-        public string? FileName;
+        public string FileName;
 
         /// <summary>
         /// Unknown (0x2C)
diff --git a/SabreTools.Serialization/Models/SecuROM/Constants.cs b/SabreTools.Serialization/Models/SecuROM/Constants.cs
index a00aa0e1..d61344bb 100644
--- a/SabreTools.Serialization/Models/SecuROM/Constants.cs
+++ b/SabreTools.Serialization/Models/SecuROM/Constants.cs
@@ -127,4 +127,4 @@ namespace SabreTools.Data.Models.SecuROM
 
         #endregion
     }
-}
\ No newline at end of file
+}
diff --git a/SabreTools.Serialization/Models/SecuROM/DFAFile.cs b/SabreTools.Serialization/Models/SecuROM/DFAFile.cs
index e4222881..296f400e 100644
--- a/SabreTools.Serialization/Models/SecuROM/DFAFile.cs
+++ b/SabreTools.Serialization/Models/SecuROM/DFAFile.cs
@@ -22,6 +22,6 @@ namespace SabreTools.Data.Models.SecuROM
         /// <summary>
         /// All entries in the file
         /// </summary>
-        public DFAEntry[]? Entries { get; set; }
+        public DFAEntry[] Entries { get; set; }
     }
 }
diff --git a/SabreTools.Serialization/Models/SecuROM/Enums.cs b/SabreTools.Serialization/Models/SecuROM/Enums.cs
index 6290e538..01868517 100644
--- a/SabreTools.Serialization/Models/SecuROM/Enums.cs
+++ b/SabreTools.Serialization/Models/SecuROM/Enums.cs
@@ -29,8 +29,8 @@ namespace SabreTools.Data.Models.SecuROM
         Dependency = 0x04,
 
         /// <summary>
-        /// Similar use to <see cref="Dependency"/> 
+        /// Similar use to <see cref="Dependency"/>
         /// </summary>
         Unknown0x08 = 0x08,
     }
-}
\ No newline at end of file
+}
diff --git a/SabreTools.Serialization/Models/SecuROM/MatroshkaEntry.cs b/SabreTools.Serialization/Models/SecuROM/MatroshkaEntry.cs
index 3ee4c7f4..cd59e531 100644
--- a/SabreTools.Serialization/Models/SecuROM/MatroshkaEntry.cs
+++ b/SabreTools.Serialization/Models/SecuROM/MatroshkaEntry.cs
@@ -10,7 +10,7 @@ namespace SabreTools.Data.Models.SecuROM
         /// Versions with key values either are 256 or 512 bytes.
         /// Stored as a string as the rest of the 256/512 bytes are just padding.
         /// </remarks>
-        public string? Path { get; set; }
+        public string Path { get; set; }
 
         /// <summary>
         /// Type of the entry data
diff --git a/SabreTools.Serialization/Models/SecuROM/MatroshkaPackage.cs b/SabreTools.Serialization/Models/SecuROM/MatroshkaPackage.cs
index cc63a401..a5c8747b 100644
--- a/SabreTools.Serialization/Models/SecuROM/MatroshkaPackage.cs
+++ b/SabreTools.Serialization/Models/SecuROM/MatroshkaPackage.cs
@@ -19,7 +19,7 @@ namespace SabreTools.Data.Models.SecuROM
         /// "MatR"
         /// </summary>
         /// <remarks>4 bytes</remarks>
-        public string? Signature { get; set; }
+        public string Signature { get; set; }
 
         /// <summary>
         /// Number of internal entries
@@ -79,8 +79,8 @@ namespace SabreTools.Data.Models.SecuROM
         #endregion
 
         /// <summary>
-        /// Entries array whose length is given by <see cref="EntryCount"/> 
+        /// Entries array whose length is given by <see cref="EntryCount"/>
         /// </summary>
-        public MatroshkaEntry[]? Entries { get; set; }
+        public MatroshkaEntry[] Entries { get; set; }
     }
-}
\ No newline at end of file
+}
diff --git a/SabreTools.Serialization/Wrappers/SecuROMDFA.Printing.cs b/SabreTools.Serialization/Wrappers/SecuROMDFA.Printing.cs
index 2435b72e..339ca567 100644
--- a/SabreTools.Serialization/Wrappers/SecuROMDFA.Printing.cs
+++ b/SabreTools.Serialization/Wrappers/SecuROMDFA.Printing.cs
@@ -24,11 +24,11 @@ namespace SabreTools.Serialization.Wrappers
             Print(builder, Model.Entries);
         }
 
-        private static void Print(StringBuilder builder, DFAEntry[]? entries)
+        private static void Print(StringBuilder builder, DFAEntry[] entries)
         {
             builder.AppendLine("  Entries Information:");
             builder.AppendLine("  -------------------------");
-            if (entries == null || entries.Length == 0)
+            if (entries.Length == 0)
             {
                 builder.AppendLine("  No entries");
                 builder.AppendLine();
@@ -38,24 +38,14 @@ namespace SabreTools.Serialization.Wrappers
             for (int i = 0; i < entries.Length; i++)
             {
                 var entry = entries[i];
-                Print(builder, entry, i);
+
+                builder.AppendLine($"  Entry {i}");
+                builder.AppendLine(entry.Name, "    Name");
+                builder.AppendLine(entry.Length, "    Length");
+                builder.AppendLine(entry.Value, "    Value");
             }
 
             builder.AppendLine();
         }
-
-        private static void Print(StringBuilder builder, DFAEntry? entry, int index)
-        {
-            builder.AppendLine($"  Entry {index}");
-            if (entry == null)
-            {
-                builder.AppendLine("    [NULL]");
-                return;
-            }
-
-            builder.AppendLine(entry.Name, "    Name");
-            builder.AppendLine(entry.Length, "    Length");
-            builder.AppendLine(entry.Value, "    Value");
-        }
     }
 }
diff --git a/SabreTools.Serialization/Wrappers/SecuROMMatroschkaPackage.Extraction.cs b/SabreTools.Serialization/Wrappers/SecuROMMatroschkaPackage.Extraction.cs
index 4e71cad3..b5bbbf58 100644
--- a/SabreTools.Serialization/Wrappers/SecuROMMatroschkaPackage.Extraction.cs
+++ b/SabreTools.Serialization/Wrappers/SecuROMMatroschkaPackage.Extraction.cs
@@ -11,7 +11,7 @@ namespace SabreTools.Serialization.Wrappers
         public bool Extract(string outputDirectory, bool includeDebug)
         {
             // If we have no entries
-            if (Entries == null || Entries.Length == 0)
+            if (Entries.Length == 0)
                 return false;
 
             // Loop through and extract all files to the output
@@ -34,7 +34,7 @@ namespace SabreTools.Serialization.Wrappers
         public bool ExtractFile(int index, string outputDirectory, bool includeDebug)
         {
             // If we have no entries
-            if (Entries == null || Entries.Length == 0)
+            if (Entries.Length == 0)
                 return false;
 
             // If the entry index is invalid
@@ -128,4 +128,4 @@ namespace SabreTools.Serialization.Wrappers
             return fileData;
         }
     }
-}
\ No newline at end of file
+}
diff --git a/SabreTools.Serialization/Wrappers/SecuROMMatroschkaPackage.Printing.cs b/SabreTools.Serialization/Wrappers/SecuROMMatroschkaPackage.Printing.cs
index ace2db3d..1424b872 100644
--- a/SabreTools.Serialization/Wrappers/SecuROMMatroschkaPackage.Printing.cs
+++ b/SabreTools.Serialization/Wrappers/SecuROMMatroschkaPackage.Printing.cs
@@ -29,11 +29,11 @@ namespace SabreTools.Serialization.Wrappers
             Print(builder, Model.Entries);
         }
 
-        private static void Print(StringBuilder builder, MatroshkaEntry[]? entries)
+        private static void Print(StringBuilder builder, MatroshkaEntry[] entries)
         {
             builder.AppendLine("  Entries Information:");
             builder.AppendLine("  -------------------------");
-            if (entries == null || entries.Length == 0)
+            if (entries.Length == 0)
             {
                 builder.AppendLine("  No entries");
                 builder.AppendLine();
diff --git a/SabreTools.Serialization/Wrappers/SecuROMMatroschkaPackage.cs b/SabreTools.Serialization/Wrappers/SecuROMMatroschkaPackage.cs
index 538c1c40..0de8391d 100644
--- a/SabreTools.Serialization/Wrappers/SecuROMMatroschkaPackage.cs
+++ b/SabreTools.Serialization/Wrappers/SecuROMMatroschkaPackage.cs
@@ -36,7 +36,7 @@ namespace SabreTools.Serialization.Wrappers
         public uint? Padding => Model.Padding;
 
         /// <inheritdoc cref="MatroshkaPackage.Entries"/>
-        public MatroshkaEntry[]? Entries => Model.Entries;
+        public MatroshkaEntry[] Entries => Model.Entries;
 
         #endregion