diff --git a/SabreTools.Helper/Data/Build.cs b/SabreTools.Helper/Data/Build.cs
index d126630b..bd59b1ea 100644
--- a/SabreTools.Helper/Data/Build.cs
+++ b/SabreTools.Helper/Data/Build.cs
@@ -115,10 +115,12 @@ namespace SabreTools.Helper
 					helptext.Add("	-od, --output-dc	Output in DOSCenter format");
 					helptext.Add("	-om, --output-miss	Output in Missfile format");
 					helptext.Add("	-omd5, --output-md5	Output in MD5 format");
+					helptext.Add("	-ool, --output-ol	Output in OfflineList format");
 					helptext.Add("	-or, --output-rc	Output in RomCenter format");
 					helptext.Add("	-os, --output-sd	Output in SabreDAT format");
 					helptext.Add("	-osfv, --ouput-sfv	Output in SFV format");
 					helptext.Add("	-osha1, --output-sha1	Output in SHA-1 format");
+					helptext.Add("	-osl, --output-sl	Output in Softwarelist format");
 					helptext.Add("	-ox, --output-xml	Output in Logiqx XML format");
 					helptext.Add("	-gz, --gz-files		Allow reading of GZIP files as archives");
 					helptext.Add("	-ro, --romba		Read files from a Romba input");
@@ -169,10 +171,15 @@ namespace SabreTools.Helper
 					helptext.Add("	  -tsv, --tsv			Output in Tab-Separated Value format");
 					helptext.Add("	  -csv, --csv			Output in Comma-Separated Value format");
 					helptext.Add("	-omd5, --output-md5	Output in MD5 format");
+					helptext.Add("	  -gp, --game-prefix		Add game name as a prefix");
+					helptext.Add("	-ool, --output-ol	Output in OfflineList format");
 					helptext.Add("	-or, --output-rc	Output in RomCenter format");
 					helptext.Add("	-os, --output-sd	Output in SabreDAT format");
 					helptext.Add("	-osfv, --ouput-sfv	Output in SFV format");
+					helptext.Add("	  -gp, --game-prefix		Add game name as a prefix");
 					helptext.Add("	-osha1, --output-sha1	Output in SHA-1 format");
+					helptext.Add("	  -gp, --game-prefix		Add game name as a prefix");
+					helptext.Add("	-osl, --output-sl	Output in Softwarelist format");
 					helptext.Add("	-ox, --output-xml	Output in Logiqx XML format");
 					helptext.Add("	-f=, --filename=	Set a new filename");
 					helptext.Add("	-n=, --name=		Set a new internal name");
diff --git a/SabreTools.Helper/Objects/Dat/DatFile.cs b/SabreTools.Helper/Objects/Dat/DatFile.cs
index 7b244cca..10eb1083 100644
--- a/SabreTools.Helper/Objects/Dat/DatFile.cs
+++ b/SabreTools.Helper/Objects/Dat/DatFile.cs
@@ -4091,27 +4091,27 @@ namespace SabreTools.Helper
 					case OutputFormat.RedumpMD5:
 						if (rom.Type == ItemType.Rom)
 						{
-							state += ((Rom)rom).MD5 + " *" + rom.Name + "\n";
+							state += ((Rom)rom).MD5 + " *" + (GameName ? rom.MachineName + Path.DirectorySeparatorChar : "") + rom.Name + "\n";
 						}
 						else if (rom.Type == ItemType.Disk)
 						{
-							state += ((Disk)rom).MD5 + " *" + rom.Name + "\n";
+							state += ((Disk)rom).MD5 + " *" + (GameName ? rom.MachineName + Path.DirectorySeparatorChar : "") + rom.Name + "\n";
 						}
 						break;
 					case OutputFormat.RedumpSFV:
 						if (rom.Type == ItemType.Rom)
 						{
-							state += rom.Name + " " + ((Rom)rom).CRC + "\n";
+							state += (GameName ? rom.MachineName + Path.DirectorySeparatorChar : "") + rom.Name + " " + ((Rom)rom).CRC + "\n";
 						}
 						break;
 					case OutputFormat.RedumpSHA1:
 						if (rom.Type == ItemType.Rom)
 						{
-							state += ((Rom)rom).SHA1 + " *" + rom.Name + "\n";
+							state += ((Rom)rom).SHA1 + " *" + (GameName ? rom.MachineName + Path.DirectorySeparatorChar : "") + rom.Name + "\n";
 						}
 						else if (rom.Type == ItemType.Disk)
 						{
-							state += ((Disk)rom).SHA1 + " *" + rom.Name + "\n";
+							state += ((Disk)rom).SHA1 + " *" + (GameName ? rom.MachineName + Path.DirectorySeparatorChar : "") + rom.Name + "\n";
 						}
 						break;
 					case OutputFormat.RomCenter:
diff --git a/SabreTools.Helper/README.1ST b/SabreTools.Helper/README.1ST
index 5319b669..5a81ecd6 100644
--- a/SabreTools.Helper/README.1ST
+++ b/SabreTools.Helper/README.1ST
@@ -420,6 +420,9 @@ Options:
 		-omd5, --output-md5	Output in MD5 format
 			Add outputting the created DAT to MD5 format
 			
+			-gp, --game-prefix		Add game name as a prefix
+				This allows for the name of the game to be used as a prefix to each file
+			
 		-ool, --output-ol	Output in OfflineList format
 			Add outputting the created DAT to OfflineList XML format
 			
@@ -432,9 +435,15 @@ Options:
 		-osfv, --output-sfv	Output in SFV format
 			Add outputting the created DAT to SFV format
 			
+			-gp, --game-prefix		Add game name as a prefix
+				This allows for the name of the game to be used as a prefix to each file
+			
 		-osha1, -output-sha1	Output in SHA-1 format
 			Add outputting the created DAT to SHA1 format
 			
+			-gp, --game-prefix		Add game name as a prefix
+				This allows for the name of the game to be used as a prefix to each file
+			
 		-osl, --output-sl	Output in Software List format
 			Add outputting the created DAT to Software List XML format
 			
@@ -900,9 +909,6 @@ Below are originally from SabreTools / DATabase -
 			
 		-oc, --output-cmp	Output in CMP format
 			Add outputting the created DAT to clrmamepro format
-		
-		-od, --output-dc	Output in DOSCenter format
-			Add outputting the created DAT to DOSCenter format
 			
 		-om, --output-miss	Output in Missfile format
 			Add outputting the created DAT to GoodTools miss format
@@ -910,9 +916,6 @@ Below are originally from SabreTools / DATabase -
 		-omd5, --output-md5	Output in MD5 format
 			Add outputting the created DAT to MD5 format
 			
-		-ool, --output-ol	Output in OfflineList format
-			Add outputting the created DAT to OfflineList XML format
-			
 		-or, --output-rc	Output in RomCenter format
 			Add outputting the created DAT to RomCenter format
 			
@@ -925,9 +928,6 @@ Below are originally from SabreTools / DATabase -
 		-osha1, -output-sha1	Output in SHA-1 format
 			Add outputting the created DAT to SHA1 format
 			
-		-osl, --output-sl	Output in Software List format
-			Add outputting the created DAT to Software List XML format
-			
 		-ox, -output-xml	Output in Logiqx XML format (default)
 			Add outputting the created DAT to Logiqx XML format