diff --git a/SabreTools.Helper/Dats/Filter.cs b/SabreTools.Helper/Dats/Filter.cs
index e9f46ded..7259acba 100644
--- a/SabreTools.Helper/Dats/Filter.cs
+++ b/SabreTools.Helper/Dats/Filter.cs
@@ -469,19 +469,15 @@ namespace SabreTools.Helper.Dats
 		/// <param name="haystack">List to search for the value in</param>
 		/// <param name="needle">Value to search the list for</param>
 		/// <returns>True if the value could be found, false otherwise</returns>
-		/// <remarks>TODO: Add proper regex matching to all strings</remarks>
-		private bool FindValueInList(List<string> haystack, string needle, bool regex = false)
+		private bool FindValueInList(List<string> haystack, string needle)
 		{
 			bool found = false;
 			foreach (string straw in haystack)
 			{
 				if (!String.IsNullOrEmpty(straw))
 				{
-					// Pre-process the straw to make it regex-compatibile
-					string regexStraw = (!regex ? "^" + (straw.StartsWith("*") ? ".*" : "") + Regex.Escape(straw.Trim('*')) + (straw.EndsWith("*") ? ".*" : "") + "$" : straw);
-
 					// Check if a match is found with the regex
-					found |= Regex.IsMatch(needle, regexStraw, RegexOptions.IgnoreCase);
+					found |= Regex.IsMatch(needle, straw, RegexOptions.IgnoreCase);
 				}
 			}
 
diff --git a/SabreTools.Helper/README.1ST b/SabreTools.Helper/README.1ST
index 1bb410f3..8dcc55a9 100644
--- a/SabreTools.Helper/README.1ST
+++ b/SabreTools.Helper/README.1ST
@@ -955,13 +955,9 @@ Options:
 		-nmd5=, --not-md5=	Exclude by MD5 hash
 		-sha1=, --sha1=		Filter by SHA-1 hash
 		-nsha1=, --not-sha1= Exclude by SHA-1 hash
-			For each of the flags above, the user can specify either an exact match or can use a
-			wildcard as defined below (case-insensitive):
-				*00 means ends with '00'
-				00* means starts with '00'
-				*00* means contains '00'
-				00 means exactly equals '00'
-			Multiples of each of the above inputs are allowed.
+			For each of the flags above, the user can specify either an exact match or can use
+			full C#-style regex for pattern matching. Multiples of each of the above inputs are
+			allowed.
 			
 		-ofg, --of-as-game	Allow cloneof and romof tags to match game name filters
 			If filter or exclude by game name is used, this flag will allow those filters to
diff --git a/SabreTools/Partials/SabreTools.Help.cs b/SabreTools/Partials/SabreTools.Help.cs
index c4485c0a..e71d94f6 100644
--- a/SabreTools/Partials/SabreTools.Help.cs
+++ b/SabreTools/Partials/SabreTools.Help.cs
@@ -647,11 +647,7 @@ namespace SabreTools
 
 					"",
 					"Filter parameters game name, rom name, CRC, MD5, SHA-1 can",
-					"do partial matches using asterisks as follows (case insensitive):",
-					"  *00 means ends with '00'",
-					"  00* means starts with '00'",
-					"  *00* means contains '00'",
-					"  00 means exactly equals '00'",
+					"be matched using full C#-style regex.",
 
 					"",
 					"Filter parameters for size can use postfixes for inputs:",