diff --git a/SabreTools.Helper/Objects/Dat/Archive.cs b/SabreTools.Helper/Objects/Dat/Archive.cs
index ca53d114..3ed37c9f 100644
--- a/SabreTools.Helper/Objects/Dat/Archive.cs
+++ b/SabreTools.Helper/Objects/Dat/Archive.cs
@@ -1,5 +1,8 @@
-namespace SabreTools.Helper
+using System;
+
+namespace SabreTools.Helper
 {
+	[Serializable]
 	public class Archive : DatItem
 	{
 		#region Constructors
diff --git a/SabreTools.Helper/Objects/Dat/BiosSet.cs b/SabreTools.Helper/Objects/Dat/BiosSet.cs
index 6600be81..60ac58a2 100644
--- a/SabreTools.Helper/Objects/Dat/BiosSet.cs
+++ b/SabreTools.Helper/Objects/Dat/BiosSet.cs
@@ -1,5 +1,8 @@
-namespace SabreTools.Helper
+using System;
+
+namespace SabreTools.Helper
 {
+	[Serializable]
 	public class BiosSet : DatItem
 	{
 		#region Private instance variables
diff --git a/SabreTools.Helper/Objects/Dat/Disk.cs b/SabreTools.Helper/Objects/Dat/Disk.cs
index e423e361..4b31f765 100644
--- a/SabreTools.Helper/Objects/Dat/Disk.cs
+++ b/SabreTools.Helper/Objects/Dat/Disk.cs
@@ -2,6 +2,7 @@
 
 namespace SabreTools.Helper
 {
+	[Serializable]
 	public class Disk : DatItem
 	{
 		#region Private instance variables
diff --git a/SabreTools.Helper/Objects/Dat/Release.cs b/SabreTools.Helper/Objects/Dat/Release.cs
index 02300921..723fcbd3 100644
--- a/SabreTools.Helper/Objects/Dat/Release.cs
+++ b/SabreTools.Helper/Objects/Dat/Release.cs
@@ -1,5 +1,8 @@
-namespace SabreTools.Helper
+using System;
+
+namespace SabreTools.Helper
 {
+	[Serializable]
 	public class Release : DatItem
 	{
 		#region Private instance variables
diff --git a/SabreTools.Helper/Objects/Dat/Rom.cs b/SabreTools.Helper/Objects/Dat/Rom.cs
index 51d33031..647196db 100644
--- a/SabreTools.Helper/Objects/Dat/Rom.cs
+++ b/SabreTools.Helper/Objects/Dat/Rom.cs
@@ -2,6 +2,7 @@
 
 namespace SabreTools.Helper
 {
+	[Serializable]
 	public class Rom : Disk
 	{
 		#region Private instance variables
diff --git a/SabreTools.Helper/Objects/Dat/Sample.cs b/SabreTools.Helper/Objects/Dat/Sample.cs
index 9791c0cb..357c3490 100644
--- a/SabreTools.Helper/Objects/Dat/Sample.cs
+++ b/SabreTools.Helper/Objects/Dat/Sample.cs
@@ -1,5 +1,8 @@
-namespace SabreTools.Helper
+using System;
+
+namespace SabreTools.Helper
 {
+	[Serializable]
 	public class Sample : DatItem
 	{
 		#region Constructors