diff --git a/SabreHelper/Output.cs b/SabreHelper/Output.cs
new file mode 100644
index 00000000..e35f1182
--- /dev/null
+++ b/SabreHelper/Output.cs
@@ -0,0 +1,102 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Text;
+using System.Web;
+
+namespace SabreTools.Helper
+{
+	public class Output
+	{
+		public static bool WriteToDat(string name, string description, string version, string date, string category, string author, bool forceunzip, bool old, string outDir, List<RomData> roms, Logger logger)
+		{
+			// Create and open an output file for writing (currently uses current time, change to "last updated time"
+			logger.Log("Opening file for writing: " + outDir + description + (old ? ".dat" : ".xml"));
+
+			try
+			{
+				FileStream fs = File.Create(outDir + description + (old ? ".dat" : ".xml"));
+				StreamWriter sw = new StreamWriter(fs, Encoding.UTF8);
+
+				string header_old = "clrmamepro (\n" +
+					"\tname \"" + HttpUtility.HtmlEncode(name) + "\"\n" +
+					"\tdescription \"" + HttpUtility.HtmlEncode(description) + "\"\n" +
+					"\tversion \"" + HttpUtility.HtmlEncode(version) + "\"\n" +
+					"\tcomment \"\"\n" +
+					"\tauthor \"" + HttpUtility.HtmlEncode(author) + "\"\n" +
+					(forceunzip ? "\tforcezipping no\n" : "") +
+					")\n";
+
+				string header = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
+					"<!DOCTYPE datafile PUBLIC \"-//Logiqx//DTD ROM Management Datafile//EN\" \"http://www.logiqx.com/Dats/datafile.dtd\">\n\n" +
+					"\t<datafile>\n" +
+					"\t\t<header>\n" +
+					"\t\t\t<name>" + HttpUtility.HtmlEncode(name) + "</name>\n" +
+					"\t\t\t<description>" + HttpUtility.HtmlEncode(description) + "</description>\n" +
+					"\t\t\t<category>" + HttpUtility.HtmlEncode(category) + "/category>\n" +
+					"\t\t\t<version>" + HttpUtility.HtmlEncode(version) + "</version>\n" +
+					"\t\t\t<date>" + HttpUtility.HtmlEncode(date) + "</date>\n" +
+					"\t\t\t<author>" + HttpUtility.HtmlEncode(author) + "</author>\n" +
+					(forceunzip ? "\t\t\t<clrmamepro forcepacking=\"unzip\" />\n" : "") +
+					"\t\t</header>\n";
+
+				// Write the header out
+				sw.Write((old ? header_old : header));
+
+				// Write out each of the machines and roms
+				string lastgame = "";
+				foreach (RomData rom in roms)
+				{
+					string state = "";
+					if (lastgame != "" && lastgame != rom.Game)
+					{
+						state += (old ? ")\n" : "\t</machine>\n");
+					}
+
+					if (lastgame != rom.Game)
+					{
+						state += (old ? "game (\n\tname \"" + rom.Game + "\"\n" +
+							"\tdescription \"" + rom.Game + "\"\n" :
+							"\t<machine name=\"" + HttpUtility.HtmlEncode(rom.Game) + "\">\n" +
+							"\t\t<description>" + HttpUtility.HtmlEncode(rom.Game) + "</description>\n");
+					}
+
+					if (old)
+					{
+						state += "\t" + rom.Type + " ( name \"" + rom.Name + "\"" +
+							(rom.Size != 0 ? " size " + rom.Size : "") +
+							(rom.CRC != "" ? " crc " + rom.CRC.ToLowerInvariant() : "") +
+							(rom.MD5 != "" ? " md5 " + rom.MD5.ToLowerInvariant() : "") +
+							(rom.SHA1 != "" ? " sha1 " + rom.SHA1.ToLowerInvariant() : "") +
+							" )\n";
+					}
+					else
+					{
+						state += "\t\t<" + rom.Type + " name=\"" + HttpUtility.HtmlEncode(rom.Name) + "\"" +
+							(rom.Size != -1 ? " size=\"" + rom.Size + "\"" : "") +
+							(rom.CRC != "" ? " crc=\"" + rom.CRC.ToLowerInvariant() + "\"" : "") +
+							(rom.MD5 != "" ? " md5=\"" + rom.MD5.ToLowerInvariant() + "\"" : "") +
+							(rom.SHA1 != "" ? " sha1=\"" + rom.SHA1.ToLowerInvariant() + "\"" : "") +
+							" />\n";
+					}
+
+					lastgame = rom.Game;
+
+					sw.Write(state);
+				}
+
+				sw.Write((old ? ")" : "\t</machine>\n</datafile>"));
+				logger.Log("File written!");
+				sw.Close();
+				fs.Close();
+			}
+			catch (Exception ex)
+			{
+				logger.Error(ex.ToString());
+				return false;
+			}
+
+			return true;
+		}
+	}
+}
diff --git a/SabreHelper/SabreHelper.csproj b/SabreHelper/SabreHelper.csproj
index 2afb9bcb..c4dd755b 100644
--- a/SabreHelper/SabreHelper.csproj
+++ b/SabreHelper/SabreHelper.csproj
@@ -59,6 +59,7 @@
       <HintPath>..\packages\System.Data.SQLite.Linq.1.0.99.0\lib\net451\System.Data.SQLite.Linq.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="System.Web" />
     <Reference Include="System.Xml.Linq" />
     <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="Microsoft.CSharp" />
@@ -72,6 +73,7 @@
     <Compile Include="DBTools.cs" />
     <Compile Include="Enums.cs" />
     <Compile Include="Logger.cs" />
+    <Compile Include="Output.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Remapping.cs" />
     <Compile Include="Structs.cs" />