diff --git a/SabreTools.DatFiles.Test/DatFileTests.cs b/SabreTools.DatFiles.Test/DatFileTests.cs
index 23350f10..06bdda3a 100644
--- a/SabreTools.DatFiles.Test/DatFileTests.cs
+++ b/SabreTools.DatFiles.Test/DatFileTests.cs
@@ -2,6 +2,12 @@ namespace SabreTools.DatFiles.Test
 {
     public class DatFileTests
     {
+        #region SupportedTypes
+
+        // TODO: Write SupportedTypes tests
+
+        #endregion
+
         #region Constructor
 
         // TODO: Write Constructor tests
@@ -98,12 +104,6 @@ namespace SabreTools.DatFiles.Test
 
         #endregion
 
-        #region GetSupportedTypes
-
-        // TODO: Write GetSupportedTypes tests
-
-        #endregion
-
         #region GetMissingRequiredFields
 
         // TODO: Write GetMissingRequiredFields tests
diff --git a/SabreTools.DatFiles/DatFile.cs b/SabreTools.DatFiles/DatFile.cs
index fae89cd8..108d406a 100644
--- a/SabreTools.DatFiles/DatFile.cs
+++ b/SabreTools.DatFiles/DatFile.cs
@@ -38,6 +38,11 @@ namespace SabreTools.DatFiles
         [JsonProperty("items"), XmlElement("items")]
         public ItemDictionaryDB ItemsDB { get; private set; } = new ItemDictionaryDB();
 
+        /// <summary>
+        /// List of supported types for writing
+        /// </summary>
+        public abstract ItemType[] SupportedTypes { get; }
+
         #endregion
 
         #region Logging
@@ -696,16 +701,6 @@ namespace SabreTools.DatFiles
             return new KeyValuePair<long, DatItem>(item.Key, rom);
         }
 
-        /// <summary>
-        /// Get supported types for write
-        /// </summary>
-        /// <returns>List of supported types for writing</returns>
-        /// TODO: Make this into a property instead of a method
-        protected virtual ItemType[] GetSupportedTypes()
-        {
-            return Enum.GetValues(typeof(ItemType)) as ItemType[] ?? [];
-        }
-
         /// <summary>
         /// Return list of required fields missing from a DatItem
         /// </summary>
@@ -727,7 +722,7 @@ namespace SabreTools.DatFiles
             foreach (DatItem datItem in datItems)
             {
                 ItemType itemType = datItem.GetStringFieldValue(Models.Metadata.DatItem.TypeKey).AsEnumValue<ItemType>();
-                if (Array.Exists(GetSupportedTypes(), t => t == itemType))
+                if (Array.Exists(SupportedTypes, t => t == itemType))
                     return true;
             }
 
@@ -749,7 +744,7 @@ namespace SabreTools.DatFiles
             foreach (var datItem in datItems)
             {
                 ItemType itemType = datItem.Value.GetStringFieldValue(Models.Metadata.DatItem.TypeKey).AsEnumValue<ItemType>();
-                if (Array.Exists(GetSupportedTypes(), t => t == itemType))
+                if (Array.Exists(SupportedTypes, t => t == itemType))
                     return true;
             }
 
@@ -990,7 +985,7 @@ namespace SabreTools.DatFiles
             // If we have an item type not in the list of supported values
             string datFormat = Header?.GetFieldValue<DatFormat>(DatHeader.DatFormatKey).ToString() ?? "Unknown Format";
             ItemType itemType = datItem.GetStringFieldValue(Models.Metadata.DatItem.TypeKey).AsEnumValue<ItemType>();
-            if (!Array.Exists(GetSupportedTypes(), t => t == itemType))
+            if (!Array.Exists(SupportedTypes, t => t == itemType))
             {
                 string itemString = JsonConvert.SerializeObject(datItem, Formatting.None);
                 _logger?.Verbose($"Item '{itemString}' was skipped because it was not supported in {datFormat}");
diff --git a/SabreTools.DatFiles/Formats/ArchiveDotOrg.cs b/SabreTools.DatFiles/Formats/ArchiveDotOrg.cs
index 83fd1d29..942470ed 100644
--- a/SabreTools.DatFiles/Formats/ArchiveDotOrg.cs
+++ b/SabreTools.DatFiles/Formats/ArchiveDotOrg.cs
@@ -7,6 +7,12 @@ namespace SabreTools.DatFiles.Formats
     /// </summary>
     internal sealed class ArchiveDotOrg : SerializableDatFile<Models.ArchiveDotOrg.Files, Serialization.Deserializers.ArchiveDotOrg, Serialization.Serializers.ArchiveDotOrg, Serialization.CrossModel.ArchiveDotOrg>
     {
+        /// <inheritdoc/>
+        public override ItemType[] SupportedTypes
+            => [
+                ItemType.Rom,
+            ];
+
         /// <summary>
         /// Constructor designed for casting a base DatFile
         /// </summary>
@@ -14,14 +20,5 @@ namespace SabreTools.DatFiles.Formats
         public ArchiveDotOrg(DatFile? datFile) : base(datFile)
         {
         }
-
-        /// <inheritdoc/>
-        protected override ItemType[] GetSupportedTypes()
-        {
-            return
-            [
-                ItemType.Rom,
-            ];
-        }
     }
 }
diff --git a/SabreTools.DatFiles/Formats/AttractMode.cs b/SabreTools.DatFiles/Formats/AttractMode.cs
index 8121697d..2e00dd07 100644
--- a/SabreTools.DatFiles/Formats/AttractMode.cs
+++ b/SabreTools.DatFiles/Formats/AttractMode.cs
@@ -8,6 +8,12 @@ namespace SabreTools.DatFiles.Formats
     /// </summary>
     internal sealed class AttractMode : SerializableDatFile<Models.AttractMode.MetadataFile, Serialization.Deserializers.AttractMode, Serialization.Serializers.AttractMode, Serialization.CrossModel.AttractMode>
     {
+        /// <inheritdoc/>
+        public override ItemType[] SupportedTypes
+            => [
+                ItemType.Rom,
+            ];
+
         /// <summary>
         /// Constructor designed for casting a base DatFile
         /// </summary>
@@ -16,15 +22,6 @@ namespace SabreTools.DatFiles.Formats
         {
         }
 
-        /// <inheritdoc/>
-        protected override ItemType[] GetSupportedTypes()
-        {
-            return
-            [
-                ItemType.Rom
-            ];
-        }
-
         /// <inheritdoc/>
         protected override List<string>? GetMissingRequiredFields(DatItem datItem)
         {
diff --git a/SabreTools.DatFiles/Formats/ClrMamePro.cs b/SabreTools.DatFiles/Formats/ClrMamePro.cs
index cb0c1ace..e130c2ef 100644
--- a/SabreTools.DatFiles/Formats/ClrMamePro.cs
+++ b/SabreTools.DatFiles/Formats/ClrMamePro.cs
@@ -13,6 +13,24 @@ namespace SabreTools.DatFiles.Formats
     {
         #region Fields
 
+        /// <inheritdoc/>
+        public override ItemType[] SupportedTypes
+            => [
+                ItemType.Archive,
+                ItemType.BiosSet,
+                ItemType.Chip,
+                ItemType.DipSwitch,
+                ItemType.Disk,
+                ItemType.Display,
+                ItemType.Driver,
+                ItemType.Input,
+                ItemType.Media,
+                ItemType.Release,
+                ItemType.Rom,
+                ItemType.Sample,
+                ItemType.Sound,
+            ];
+
         /// <summary>
         /// Get whether to assume quote usage on read and write or not
         /// </summary>
@@ -49,27 +67,6 @@ namespace SabreTools.DatFiles.Formats
             }
         }
 
-        /// <inheritdoc/>
-        protected override ItemType[] GetSupportedTypes()
-        {
-            return
-            [
-                ItemType.Archive,
-                ItemType.BiosSet,
-                ItemType.Chip,
-                ItemType.DipSwitch,
-                ItemType.Disk,
-                ItemType.Display,
-                ItemType.Driver,
-                ItemType.Input,
-                ItemType.Media,
-                ItemType.Release,
-                ItemType.Rom,
-                ItemType.Sample,
-                ItemType.Sound,
-            ];
-        }
-
         /// <inheritdoc/>
         protected override List<string>? GetMissingRequiredFields(DatItem datItem)
         {
diff --git a/SabreTools.DatFiles/Formats/DosCenter.cs b/SabreTools.DatFiles/Formats/DosCenter.cs
index 2d1412b7..77068e33 100644
--- a/SabreTools.DatFiles/Formats/DosCenter.cs
+++ b/SabreTools.DatFiles/Formats/DosCenter.cs
@@ -9,6 +9,12 @@ namespace SabreTools.DatFiles.Formats
     /// </summary>
     internal sealed class DosCenter : SerializableDatFile<Models.DosCenter.MetadataFile, Serialization.Deserializers.DosCenter, Serialization.Serializers.DosCenter, Serialization.CrossModel.DosCenter>
     {
+        /// <inheritdoc/>
+        public override ItemType[] SupportedTypes
+            => [
+                ItemType.Rom,
+            ];
+
         /// <summary>
         /// Constructor designed for casting a base DatFile
         /// </summary>
@@ -17,15 +23,6 @@ namespace SabreTools.DatFiles.Formats
         {
         }
 
-        /// <inheritdoc/>
-        protected override ItemType[] GetSupportedTypes()
-        {
-            return
-            [
-                ItemType.Rom
-            ];
-        }
-
         /// <inheritdoc/>
         protected override List<string>? GetMissingRequiredFields(DatItem datItem)
         {
diff --git a/SabreTools.DatFiles/Formats/EverdriveSmdb.cs b/SabreTools.DatFiles/Formats/EverdriveSmdb.cs
index 82dfbd83..3fc9cec0 100644
--- a/SabreTools.DatFiles/Formats/EverdriveSmdb.cs
+++ b/SabreTools.DatFiles/Formats/EverdriveSmdb.cs
@@ -9,6 +9,12 @@ namespace SabreTools.DatFiles.Formats
     /// </summary>
     internal sealed class EverdriveSMDB : SerializableDatFile<Models.EverdriveSMDB.MetadataFile, Serialization.Deserializers.EverdriveSMDB, Serialization.Serializers.EverdriveSMDB, Serialization.CrossModel.EverdriveSMDB>
     {
+        /// <inheritdoc/>
+        public override ItemType[] SupportedTypes
+            => [
+                ItemType.Rom,
+            ];
+
         /// <summary>
         /// Constructor designed for casting a base DatFile
         /// </summary>
@@ -17,15 +23,6 @@ namespace SabreTools.DatFiles.Formats
         {
         }
 
-        /// <inheritdoc/>
-        protected override ItemType[] GetSupportedTypes()
-        {
-            return
-            [
-                ItemType.Rom
-            ];
-        }
-
         /// <inheritdoc/>
         protected override List<string>? GetMissingRequiredFields(DatItem datItem)
         {
diff --git a/SabreTools.DatFiles/Formats/Hashfile.cs b/SabreTools.DatFiles/Formats/Hashfile.cs
index d395c4e4..477724b6 100644
--- a/SabreTools.DatFiles/Formats/Hashfile.cs
+++ b/SabreTools.DatFiles/Formats/Hashfile.cs
@@ -11,9 +11,21 @@ namespace SabreTools.DatFiles.Formats
     /// </summary>
     internal abstract class Hashfile : SerializableDatFile<Models.Hashfile.Hashfile, Serialization.Deserializers.Hashfile, Serialization.Serializers.Hashfile, Serialization.CrossModel.Hashfile>
     {
+        #region Fields
+
+        /// <inheritdoc/>
+        public override ItemType[] SupportedTypes
+            => [
+                ItemType.Disk,
+                ItemType.Media,
+                ItemType.Rom,
+            ];
+
         // Private instance variables specific to Hashfile DATs
         protected HashType _hash;
 
+        #endregion
+
         /// <summary>
         /// Constructor designed for casting a base DatFile
         /// </summary>
@@ -41,17 +53,6 @@ namespace SabreTools.DatFiles.Formats
             }
         }
 
-        /// <inheritdoc/>
-        protected override ItemType[] GetSupportedTypes()
-        {
-            return
-            [
-                ItemType.Disk,
-                ItemType.Media,
-                ItemType.Rom
-            ];
-        }
-
         /// <inheritdoc/>
         protected override List<string>? GetMissingRequiredFields(DatItem datItem)
         {
diff --git a/SabreTools.DatFiles/Formats/Listrom.cs b/SabreTools.DatFiles/Formats/Listrom.cs
index 26d1c424..aec7f049 100644
--- a/SabreTools.DatFiles/Formats/Listrom.cs
+++ b/SabreTools.DatFiles/Formats/Listrom.cs
@@ -9,6 +9,13 @@ namespace SabreTools.DatFiles.Formats
     /// </summary>
     internal sealed class Listrom : SerializableDatFile<Models.Listrom.MetadataFile, Serialization.Deserializers.Listrom, Serialization.Serializers.Listrom, Serialization.CrossModel.Listrom>
     {
+        /// <inheritdoc/>
+        public override ItemType[] SupportedTypes
+            => [
+                ItemType.Disk,
+                ItemType.Rom,
+            ];
+
         /// <summary>
         /// Constructor designed for casting a base DatFile
         /// </summary>
@@ -17,16 +24,6 @@ namespace SabreTools.DatFiles.Formats
         {
         }
 
-        /// <inheritdoc/>
-        protected override ItemType[] GetSupportedTypes()
-        {
-            return
-            [
-                ItemType.Disk,
-                ItemType.Rom
-            ];
-        }
-
         /// <inheritdoc/>
         protected override List<string>? GetMissingRequiredFields(DatItem datItem)
         {
diff --git a/SabreTools.DatFiles/Formats/Listxml.cs b/SabreTools.DatFiles/Formats/Listxml.cs
index 6fe9458e..b7f269a8 100644
--- a/SabreTools.DatFiles/Formats/Listxml.cs
+++ b/SabreTools.DatFiles/Formats/Listxml.cs
@@ -11,6 +11,8 @@ namespace SabreTools.DatFiles.Formats
     /// </summary>
     internal sealed class Listxml : SerializableDatFile<Models.Listxml.Mame, Serialization.Deserializers.Listxml, Serialization.Serializers.Listxml, Serialization.CrossModel.Listxml>
     {
+        #region Constants
+
         /// <summary>
         /// DTD for original MAME XML DATs
         /// </summary>
@@ -177,6 +179,37 @@ namespace SabreTools.DatFiles.Formats
 ]>
 ";
 
+        #endregion
+
+        #region Fields
+
+        /// <inheritdoc/>
+        public override ItemType[] SupportedTypes
+            => [
+                ItemType.Adjuster,
+                ItemType.BiosSet,
+                ItemType.Chip,
+                ItemType.Condition,
+                ItemType.Configuration,
+                ItemType.Device,
+                ItemType.DeviceRef,
+                ItemType.DipSwitch,
+                ItemType.Disk,
+                ItemType.Display,
+                ItemType.Driver,
+                ItemType.Feature,
+                ItemType.Input,
+                ItemType.Port,
+                ItemType.RamOption,
+                ItemType.Rom,
+                ItemType.Sample,
+                ItemType.Slot,
+                ItemType.SoftwareList,
+                ItemType.Sound,
+            ];
+
+        #endregion
+
         /// <summary>
         /// Constructor designed for casting a base DatFile
         /// </summary>
@@ -213,34 +246,6 @@ namespace SabreTools.DatFiles.Formats
             }
         }
 
-        /// <inheritdoc/>
-        protected override ItemType[] GetSupportedTypes()
-        {
-            return
-            [
-                ItemType.Adjuster,
-                ItemType.BiosSet,
-                ItemType.Chip,
-                ItemType.Condition,
-                ItemType.Configuration,
-                ItemType.Device,
-                ItemType.DeviceRef,
-                ItemType.DipSwitch,
-                ItemType.Disk,
-                ItemType.Display,
-                ItemType.Driver,
-                ItemType.Feature,
-                ItemType.Input,
-                ItemType.Port,
-                ItemType.RamOption,
-                ItemType.Rom,
-                ItemType.Sample,
-                ItemType.Slot,
-                ItemType.SoftwareList,
-                ItemType.Sound,
-            ];
-        }
-
         /// <inheritdoc/>
         protected override List<string>? GetMissingRequiredFields(DatItem datItem)
         {
diff --git a/SabreTools.DatFiles/Formats/Logiqx.cs b/SabreTools.DatFiles/Formats/Logiqx.cs
index 2683a486..eb039001 100644
--- a/SabreTools.DatFiles/Formats/Logiqx.cs
+++ b/SabreTools.DatFiles/Formats/Logiqx.cs
@@ -11,8 +11,7 @@ namespace SabreTools.DatFiles.Formats
     /// </summary>
     internal sealed class Logiqx : SerializableDatFile<Models.Logiqx.Datafile, Serialization.Deserializers.Logiqx, Serialization.Serializers.Logiqx, Serialization.CrossModel.Logiqx>
     {
-        // Private instance variables specific to Logiqx DATs
-        private readonly bool _deprecated;
+        #region Constants
 
         /// <summary>
         /// DTD for original Logiqx DATs
@@ -220,21 +219,13 @@ namespace SabreTools.DatFiles.Formats
 </xs:schema>
 ";
 
-        /// <summary>
-        /// Constructor designed for casting a base DatFile
-        /// </summary>
-        /// <param name="datFile">Parent DatFile to copy from</param>
-        /// <param name="deprecated">True if the output uses "game", false if the output uses "machine"</param>
-        public Logiqx(DatFile? datFile, bool deprecated) : base(datFile)
-        {
-            _deprecated = deprecated;
-        }
+        #endregion
+
+        #region Fields
 
         /// <inheritdoc/>
-        protected override ItemType[] GetSupportedTypes()
-        {
-            return
-            [
+        public override ItemType[] SupportedTypes
+            => [
                 ItemType.Archive,
                 ItemType.BiosSet,
                 ItemType.Disk,
@@ -243,6 +234,22 @@ namespace SabreTools.DatFiles.Formats
                 ItemType.Rom,
                 ItemType.Sample,
             ];
+
+        /// <summary>
+        /// Indicates if game should be used instead of machine
+        /// </summary>
+        private readonly bool _deprecated;
+
+        #endregion
+
+        /// <summary>
+        /// Constructor designed for casting a base DatFile
+        /// </summary>
+        /// <param name="datFile">Parent DatFile to copy from</param>
+        /// <param name="deprecated">True if the output uses "game", false if the output uses "machine"</param>
+        public Logiqx(DatFile? datFile, bool deprecated) : base(datFile)
+        {
+            _deprecated = deprecated;
         }
 
         /// <inheritdoc/>
diff --git a/SabreTools.DatFiles/Formats/Missfile.cs b/SabreTools.DatFiles/Formats/Missfile.cs
index d708ba7c..d730d527 100644
--- a/SabreTools.DatFiles/Formats/Missfile.cs
+++ b/SabreTools.DatFiles/Formats/Missfile.cs
@@ -11,6 +11,10 @@ namespace SabreTools.DatFiles.Formats
     /// </summary>
     internal sealed class Missfile : DatFile
     {
+        /// <inheritdoc/>
+        public override ItemType[] SupportedTypes
+            => Enum.GetValues(typeof(ItemType)) as ItemType[] ?? [];
+
         /// <summary>
         /// Constructor designed for casting a base DatFile
         /// </summary>
diff --git a/SabreTools.DatFiles/Formats/OfflineList.cs b/SabreTools.DatFiles/Formats/OfflineList.cs
index a6b2f58b..4792b9a4 100644
--- a/SabreTools.DatFiles/Formats/OfflineList.cs
+++ b/SabreTools.DatFiles/Formats/OfflineList.cs
@@ -9,6 +9,12 @@ namespace SabreTools.DatFiles.Formats
     /// </summary>
     internal sealed class OfflineList : SerializableDatFile<Models.OfflineList.Dat, Serialization.Deserializers.OfflineList, Serialization.Serializers.OfflineList, Serialization.CrossModel.OfflineList>
     {
+        /// <inheritdoc/>
+        public override ItemType[] SupportedTypes
+            => [
+                ItemType.Rom,
+            ];
+
         /// <summary>
         /// Constructor designed for casting a base DatFile
         /// </summary>
@@ -17,15 +23,6 @@ namespace SabreTools.DatFiles.Formats
         {
         }
 
-        /// <inheritdoc/>
-        protected override ItemType[] GetSupportedTypes()
-        {
-            return
-            [
-                ItemType.Rom
-            ];
-        }
-
         /// <inheritdoc/>
         protected override List<string>? GetMissingRequiredFields(DatItem datItem)
         {
diff --git a/SabreTools.DatFiles/Formats/OpenMSX.cs b/SabreTools.DatFiles/Formats/OpenMSX.cs
index 2a583cd5..818b91fb 100644
--- a/SabreTools.DatFiles/Formats/OpenMSX.cs
+++ b/SabreTools.DatFiles/Formats/OpenMSX.cs
@@ -9,6 +9,8 @@ namespace SabreTools.DatFiles.Formats
     /// </summary>
     internal sealed class OpenMSX : SerializableDatFile<Models.OpenMSX.SoftwareDb, Serialization.Deserializers.OpenMSX, Serialization.Serializers.OpenMSX, Serialization.CrossModel.OpenMSX>
     {
+        #region Constants
+
         /// <summary>
         /// DTD for original openMSX DATs
         /// </summary>
@@ -40,6 +42,18 @@ The softwaredb.xml file contains information about rom mapper types
 
 ]]>";
 
+        #endregion
+
+        #region Fields
+
+        /// <inheritdoc/>
+        public override ItemType[] SupportedTypes
+            => [
+                ItemType.Rom,
+            ];
+
+        #endregion
+
         /// <summary>
         /// Constructor designed for casting a base DatFile
         /// </summary>
@@ -48,15 +62,6 @@ The softwaredb.xml file contains information about rom mapper types
         {
         }
 
-        /// <inheritdoc/>
-        protected override ItemType[] GetSupportedTypes()
-        {
-            return
-            [
-                ItemType.Rom
-            ];
-        }
-
         /// <inheritdoc/>
         protected override List<string>? GetMissingRequiredFields(DatItem datItem)
         {
diff --git a/SabreTools.DatFiles/Formats/RomCenter.cs b/SabreTools.DatFiles/Formats/RomCenter.cs
index afd823e4..329dcb90 100644
--- a/SabreTools.DatFiles/Formats/RomCenter.cs
+++ b/SabreTools.DatFiles/Formats/RomCenter.cs
@@ -9,6 +9,12 @@ namespace SabreTools.DatFiles.Formats
     /// </summary>
     internal sealed class RomCenter : SerializableDatFile<Models.RomCenter.MetadataFile, Serialization.Deserializers.RomCenter, Serialization.Serializers.RomCenter, Serialization.CrossModel.RomCenter>
     {
+        /// <inheritdoc/>
+        public override ItemType[] SupportedTypes
+            => [
+                ItemType.Rom,
+            ];
+
         /// <summary>
         /// Constructor designed for casting a base DatFile
         /// </summary>
@@ -17,15 +23,6 @@ namespace SabreTools.DatFiles.Formats
         {
         }
 
-        /// <inheritdoc/>
-        protected override ItemType[] GetSupportedTypes()
-        {
-            return
-            [
-                ItemType.Rom
-            ];
-        }
-
         /// <inheritdoc/>
         protected override List<string>? GetMissingRequiredFields(DatItem datItem)
         {
diff --git a/SabreTools.DatFiles/Formats/SabreJSON.cs b/SabreTools.DatFiles/Formats/SabreJSON.cs
index f9f27450..0c576f13 100644
--- a/SabreTools.DatFiles/Formats/SabreJSON.cs
+++ b/SabreTools.DatFiles/Formats/SabreJSON.cs
@@ -17,6 +17,10 @@ namespace SabreTools.DatFiles.Formats
     /// </summary>
     internal class SabreJSON : DatFile
     {
+        /// <inheritdoc/>
+        public override ItemType[] SupportedTypes
+            => Enum.GetValues(typeof(ItemType)) as ItemType[] ?? [];
+
         /// <summary>
         /// Constructor designed for casting a base DatFile
         /// </summary>
diff --git a/SabreTools.DatFiles/Formats/SabreXML.cs b/SabreTools.DatFiles/Formats/SabreXML.cs
index 976f35fd..dd3d6fa4 100644
--- a/SabreTools.DatFiles/Formats/SabreXML.cs
+++ b/SabreTools.DatFiles/Formats/SabreXML.cs
@@ -14,6 +14,10 @@ namespace SabreTools.DatFiles.Formats
     /// </summary>
     internal class SabreXML : DatFile
     {
+        /// <inheritdoc/>
+        public override ItemType[] SupportedTypes
+            => Enum.GetValues(typeof(ItemType)) as ItemType[] ?? [];
+
         /// <summary>
         /// Constructor designed for casting a base DatFile
         /// </summary>
diff --git a/SabreTools.DatFiles/Formats/SeparatedValue.cs b/SabreTools.DatFiles/Formats/SeparatedValue.cs
index dba08db0..f3c01be5 100644
--- a/SabreTools.DatFiles/Formats/SeparatedValue.cs
+++ b/SabreTools.DatFiles/Formats/SeparatedValue.cs
@@ -10,9 +10,23 @@ namespace SabreTools.DatFiles.Formats
     /// </summary>
     internal abstract class SeparatedValue : SerializableDatFile<Models.SeparatedValue.MetadataFile, Serialization.Deserializers.SeparatedValue, Serialization.Serializers.SeparatedValue, Serialization.CrossModel.SeparatedValue>
     {
-        // Private instance variables specific to Hashfile DATs
+        #region Fields
+
+        /// <inheritdoc/>
+        public override ItemType[] SupportedTypes
+            => [
+                ItemType.Disk,
+                ItemType.Media,
+                ItemType.Rom,
+            ];
+
+        /// <summary>
+        /// Represents the delimiter between fields
+        /// </summary>
         protected char _delim;
 
+        #endregion
+
         /// <summary>
         /// Constructor designed for casting a base DatFile
         /// </summary>
@@ -40,17 +54,6 @@ namespace SabreTools.DatFiles.Formats
             }
         }
 
-        /// <inheritdoc/>
-        protected override ItemType[] GetSupportedTypes()
-        {
-            return
-            [
-                ItemType.Disk,
-                ItemType.Media,
-                ItemType.Rom
-            ];
-        }
-
         /// <inheritdoc/>
         protected override List<string>? GetMissingRequiredFields(DatItem datItem)
         {
diff --git a/SabreTools.DatFiles/Formats/SoftwareList.cs b/SabreTools.DatFiles/Formats/SoftwareList.cs
index 3e9a159c..6cd19182 100644
--- a/SabreTools.DatFiles/Formats/SoftwareList.cs
+++ b/SabreTools.DatFiles/Formats/SoftwareList.cs
@@ -10,6 +10,8 @@ namespace SabreTools.DatFiles.Formats
     /// </summary>
     internal sealed class SoftwareList : SerializableDatFile<Models.SoftwareList.SoftwareList, Serialization.Deserializers.SoftwareList, Serialization.Serializers.SoftwareList, Serialization.CrossModel.SoftwareList>
     {
+        #region Constants
+
         /// <summary>
         /// DTD for original MAME Software List DATs
         /// </summary>
@@ -71,19 +73,13 @@ namespace SabreTools.DatFiles.Formats
 					<!ATTLIST dipvalue default (yes|no) ""no"">
 ";
 
-        /// <summary>
-        /// Constructor designed for casting a base DatFile
-        /// </summary>
-        /// <param name="datFile">Parent DatFile to copy from</param>
-        public SoftwareList(DatFile? datFile) : base(datFile)
-        {
-        }
+        #endregion
+
+        #region Fields
 
         /// <inheritdoc/>
-        protected override ItemType[] GetSupportedTypes()
-        {
-            return
-            [
+        public override ItemType[] SupportedTypes
+            => [
                 ItemType.DipSwitch,
                 ItemType.Disk,
                 ItemType.Info,
@@ -91,6 +87,15 @@ namespace SabreTools.DatFiles.Formats
                 ItemType.Rom,
                 ItemType.SharedFeat,
             ];
+
+        #endregion
+
+        /// <summary>
+        /// Constructor designed for casting a base DatFile
+        /// </summary>
+        /// <param name="datFile">Parent DatFile to copy from</param>
+        public SoftwareList(DatFile? datFile) : base(datFile)
+        {
         }
 
         /// <inheritdoc/>