diff --git a/SabreTools.Helper/Objects/Dat/DatItem.cs b/SabreTools.Helper/Objects/Dat/DatItem.cs
index 1bf5e7b0..281abe3a 100644
--- a/SabreTools.Helper/Objects/Dat/DatItem.cs
+++ b/SabreTools.Helper/Objects/Dat/DatItem.cs
@@ -809,11 +809,11 @@ namespace SabreTools.Helper
 							{
 								if ((x.Type == ItemType.Rom || x.Type == ItemType.Disk) && (y.Type == ItemType.Rom || y.Type == ItemType.Disk))
 								{
-									if (Path.GetDirectoryName(x.Name) == Path.GetDirectoryName(y.Name))
+									if (Path.GetDirectoryName(Style.RemovePathUnsafeCharacters(x.Name)) == Path.GetDirectoryName(Style.RemovePathUnsafeCharacters(y.Name)))
 									{
-										return nc.Compare(Path.GetFileName(x.Name), Path.GetFileName(y.Name));
+										return nc.Compare(Path.GetFileName(Style.RemovePathUnsafeCharacters(x.Name)), Path.GetFileName(Style.RemovePathUnsafeCharacters(y.Name)));
 									}
-									return nc.Compare(Path.GetDirectoryName(x.Name), Path.GetDirectoryName(y.Name));
+									return nc.Compare(Path.GetDirectoryName(Style.RemovePathUnsafeCharacters(x.Name)), Path.GetDirectoryName(Style.RemovePathUnsafeCharacters(y.Name)));
 								}
 								else if ((x.Type == ItemType.Rom || x.Type == ItemType.Disk) && (y.Type != ItemType.Rom && y.Type != ItemType.Disk))
 								{
diff --git a/SabreTools.Helper/Tools/Style.cs b/SabreTools.Helper/Tools/Style.cs
index b7f6694c..711d1a37 100644
--- a/SabreTools.Helper/Tools/Style.cs
+++ b/SabreTools.Helper/Tools/Style.cs
@@ -429,6 +429,18 @@ namespace SabreTools.Helper
 			return (s.Any(c => c > 255));
 		}
 
+		/// <summary>
+		/// Remove all chars that are considered path unsafe
+		/// </summary>
+		/// <param name="s">Input string to clean</param>
+		/// <returns>Cleaned string</returns>
+		public static string RemovePathUnsafeCharacters(string s)
+		{
+			List<char> invalidPath = Path.GetInvalidPathChars().ToList();
+			List<char> invalidName = Path.GetInvalidFileNameChars().ToList();
+			return new string(s.Where(c => !invalidPath.Contains(c) && !invalidName.Contains(c)).ToArray());
+		}
+
 		#endregion
 
 		#region Externally sourced methods