diff --git a/SabreTools.Helper/Data/Structs.cs b/SabreTools.Helper/Data/Structs.cs
index ad9947d0..d88fd08e 100644
--- a/SabreTools.Helper/Data/Structs.cs
+++ b/SabreTools.Helper/Data/Structs.cs
@@ -3,22 +3,136 @@ using System.Collections.Generic;
 
 namespace SabreTools.Helper
 {
+	#region Hash-to-Dat structs [Currently Unused]
+
+	/* Thought experiment
+
+		So, here's a connundrum: Should the internal structure of how DATs work (down to the hash level) mirror
+		how people see it (Dat to multiple games, game to multiple roms, rom to single hash) or
+		should it more closely mirror real life (Hash to multiple roms, rom to multiple games, game to single DAT)
+
+		If I use the "how people see it":
+			Things are pretty much how they are now with redundant data and the like
+			It makes sense to write things out to file, though. And life is easier when output is easier.
+			No code changes (big plus!)
+
+		If I use the "how it is":
+			Less data is likely to be mirrored
+			Refs to DAT files are possible so that there aren't duplicates
+			A lot of code will have to change...
+	*/
+
+	/// <summary>
+	/// Intermediate struct for holding and processing Hash data (NEW SYSTEM)
+	/// </summary>
+	public struct HashData
+	{
+		public long Size;
+		public string CRC;
+		public string MD5;
+		public string SHA1;
+		public List<RomData> Roms;
+	}
+
+	/// <summary>
+	/// Intermediate struct for holding and processing Rom data (NEW SYSTEM)
+	/// </summary>
+	public struct RomData
+	{
+		public string Name;
+		public ItemType Type;
+		public bool Nodump;
+		public string Date;
+		public List<MachineData> Machines;
+	}
+
+	/// <summary>
+	/// Intermediate struct for holding and processing Game/Machine data (NEW SYSTEM)
+	/// </summary>
+	public struct MachineData
+	{
+		public string Name;
+		public string Comment;
+		public string Description;
+		public string Year;
+		public string Manufacturer;
+		public string RomOf;
+		public string CloneOf;
+		public string SampleOf;
+		public string SourceFile;
+		public bool IsBios;
+		public string Board;
+		public string RebuildTo;
+		public bool TorrentZipped;
+	}
+
+	/// <summary>
+	/// Intermediate struct for holding and processing DAT data (NEW SYSTEM)
+	/// </summary>
+	public struct DatData
+	{
+		// Data common to most DAT types
+		public string FileName;
+		public string Name;
+		public string Description;
+		public string RootDir;
+		public string Category;
+		public string Version;
+		public string Date;
+		public string Author;
+		public string Email;
+		public string Homepage;
+		public string Url;
+		public string Comment;
+		public string Header;
+		public string Type; // Generally only used for SuperDAT
+		public ForceMerging ForceMerging;
+		public ForceNodump ForceNodump;
+		public ForcePacking ForcePacking;
+		public OutputFormat OutputFormat;
+		public bool MergeRoms;
+
+		// Data specific to the Miss DAT type
+		public bool UseGame;
+		public string Prefix;
+		public string Postfix;
+		public bool Quotes;
+		public string RepExt;
+		public string AddExt;
+		public bool GameName;
+		public bool Romba;
+		public bool? XSV; // true for tab-deliminated output, false for comma-deliminated output
+
+		// Statistical data related to the DAT
+		public long RomCount;
+		public long DiskCount;
+		public long TotalSize;
+		public long CRCCount;
+		public long MD5Count;
+		public long SHA1Count;
+		public long NodumpCount;
+	}
+
+	#endregion
+
+	#region Dat-to-Hash structs
+
 	/// <summary>
 	/// Intermediate struct for holding and processing hash data
 	/// </summary>
-	public struct HashData : IEquatable<HashData>
+	public struct Hash : IEquatable<Hash>
 	{
 		public long Size;
 		public string CRC;
 		public string MD5;
 		public string SHA1;
 
-		public bool Equals(HashData other)
+		public bool Equals(Hash other)
 		{
 			return this.Equals(other, false);
 		}
 
-		public bool Equals(HashData other, bool IsDisk)
+		public bool Equals(Hash other, bool IsDisk)
 		{
 			bool equals = false;
 
@@ -49,7 +163,7 @@ namespace SabreTools.Helper
 		public Machine Machine;
 		public string Name;
 		public ItemType Type;
-		public HashData HashData;
+		public Hash HashData;
 		public DupeType Dupe;
 		public bool Nodump;
 		public string Date;
@@ -57,9 +171,6 @@ namespace SabreTools.Helper
 
 		public int CompareTo(object obj)
 		{
-			Logger temp = new Logger(false, "");
-			temp.Start();
-
 			int ret = 0;
 
 			try
@@ -70,7 +181,7 @@ namespace SabreTools.Helper
 				{
 					if (this.Name == comp.Name)
 					{
-						ret = (RomTools.IsDuplicate(this, comp, temp) ? 0 : 1);
+						ret = (this.Equals(comp) ? 0 : 1);
 					}
 					ret = String.Compare(this.Name, comp.Name);
 				}
@@ -81,7 +192,6 @@ namespace SabreTools.Helper
 				ret = 1;
 			}
 
-			temp.Close();
 			return ret;
 		}
 
@@ -278,6 +388,10 @@ namespace SabreTools.Helper
 		}
 	}
 
+	#endregion
+
+	#region Skipper structs
+
 	/// <summary>
 	/// Intermediate struct for holding header skipper information
 	/// </summary>
@@ -313,4 +427,6 @@ namespace SabreTools.Helper
 		public long? Size; // null is PO2, "power of 2" filesize
 		public HeaderSkipTestFileOperator Operator;
 	}
+
+	#endregion
 }
diff --git a/SabreTools.Helper/Tools/ArchiveTools.cs b/SabreTools.Helper/Tools/ArchiveTools.cs
index 180b7035..6157e81c 100644
--- a/SabreTools.Helper/Tools/ArchiveTools.cs
+++ b/SabreTools.Helper/Tools/ArchiveTools.cs
@@ -542,7 +542,7 @@ namespace SabreTools.Helper
 								{
 									Name = gamename,
 								},
-								HashData = new HashData
+								HashData = new Hash
 								{
 									Size = (size == 0 ? reader.Entry.Size : size),
 									CRC = (crc == "" ? reader.Entry.Crc.ToString("X").ToLowerInvariant() : crc),
@@ -626,7 +626,7 @@ namespace SabreTools.Helper
 					Name = Path.GetFileNameWithoutExtension(input).ToLowerInvariant(),
 				},
 				Name = Path.GetFileNameWithoutExtension(input).ToLowerInvariant(),
-				HashData = new HashData
+				HashData = new Hash
 				{
 					Size = extractedsize,
 					CRC = gzcrc.ToLowerInvariant(),
diff --git a/SabreTools.Helper/Tools/DatTools.cs b/SabreTools.Helper/Tools/DatTools.cs
index 8cb9ff26..ec27c174 100644
--- a/SabreTools.Helper/Tools/DatTools.cs
+++ b/SabreTools.Helper/Tools/DatTools.cs
@@ -574,7 +574,7 @@ namespace SabreTools.Helper
 								Description = rominfo[4],
 							},
 							Name = rominfo[5],
-							HashData = new HashData
+							HashData = new Hash
 							{
 								CRC = rominfo[6].ToLowerInvariant(),
 								Size = Int64.Parse(rominfo[7]),
@@ -686,7 +686,7 @@ namespace SabreTools.Helper
 									Name = tempgame,
 									Description = tempgame,
 								},
-								HashData = new HashData
+								HashData = new Hash
 								{
 									Size = -1,
 									CRC = "null",
@@ -1136,7 +1136,7 @@ namespace SabreTools.Helper
 													},
 													Name = subreader.GetAttribute("name"),
 													Type = (subreader.Name.ToLowerInvariant() == "disk" ? ItemType.Disk : ItemType.Rom),
-													HashData = new HashData
+													HashData = new Hash
 													{
 														Size = size,
 														CRC = crc,
@@ -1195,7 +1195,7 @@ namespace SabreTools.Helper
 										Name = tempname,
 										Description = tempname,
 									},
-									HashData = new HashData
+									HashData = new Hash
 									{
 										Size = -1,
 										CRC = "null",
@@ -1375,7 +1375,7 @@ namespace SabreTools.Helper
 									},
 									Name = xtr.GetAttribute("name"),
 									Type = (xtr.GetAttribute("type").ToLowerInvariant() == "disk" ? ItemType.Disk : ItemType.Rom),
-									HashData = new HashData
+									HashData = new Hash
 									{
 										Size = size,
 										CRC = crc,
diff --git a/SabreTools.Helper/Tools/RomTools.cs b/SabreTools.Helper/Tools/RomTools.cs
index 3b37ae5c..6cf5e885 100644
--- a/SabreTools.Helper/Tools/RomTools.cs
+++ b/SabreTools.Helper/Tools/RomTools.cs
@@ -30,7 +30,7 @@ namespace SabreTools.Helper
 			{
 				Name = Path.GetFileName(input),
 				Type = ItemType.Rom,
-				HashData = new HashData
+				HashData = new Hash
 				{
 					Size = (new FileInfo(input)).Length,
 					CRC = string.Empty,
diff --git a/SabreTools/DATFromDir.cs b/SabreTools/DATFromDir.cs
index 9feafab8..e2ee39c0 100644
--- a/SabreTools/DATFromDir.cs
+++ b/SabreTools/DATFromDir.cs
@@ -181,7 +181,7 @@ namespace SabreTools
 												"") + actualroot :
 											actualroot),
 									},
-									HashData = new HashData
+									HashData = new Hash
 									{
 										Size = -1,
 										CRC = "null",
@@ -220,7 +220,7 @@ namespace SabreTools
 													"") + actualroot :
 												actualroot),
 										},
-										HashData = new HashData
+										HashData = new Hash
 										{
 											Size = -1,
 											CRC = "null",