diff --git a/SabreTools.Library/DatFiles/AttractMode.cs b/SabreTools.Library/DatFiles/AttractMode.cs
index 2a227d34..c6f41ec6 100644
--- a/SabreTools.Library/DatFiles/AttractMode.cs
+++ b/SabreTools.Library/DatFiles/AttractMode.cs
@@ -124,7 +124,7 @@ namespace SabreTools.Library.DatFiles
 
                 SeparatedValueWriter svw = new SeparatedValueWriter(fs, new UTF8Encoding(false));
                 svw.Quotes = false;
-                svw.Separator = ";";
+                svw.Separator = ';';
                 svw.VerifyFieldCount = true;
 
                 // Write out the header
diff --git a/SabreTools.Library/DatFiles/EverdriveSmdb.cs b/SabreTools.Library/DatFiles/EverdriveSmdb.cs
index 7c19234f..8446087f 100644
--- a/SabreTools.Library/DatFiles/EverdriveSmdb.cs
+++ b/SabreTools.Library/DatFiles/EverdriveSmdb.cs
@@ -108,7 +108,7 @@ namespace SabreTools.Library.DatFiles
 
                 SeparatedValueWriter svw = new SeparatedValueWriter(fs, new UTF8Encoding(false));
                 svw.Quotes = false;
-                svw.Separator = "\t";
+                svw.Separator = '\t';
                 svw.VerifyFieldCount = true;
 
                 // Get a properly sorted set of keys
diff --git a/SabreTools.Library/DatFiles/Hashfile.cs b/SabreTools.Library/DatFiles/Hashfile.cs
index 7478effa..d482f561 100644
--- a/SabreTools.Library/DatFiles/Hashfile.cs
+++ b/SabreTools.Library/DatFiles/Hashfile.cs
@@ -124,7 +124,7 @@ namespace SabreTools.Library.DatFiles
 
                 SeparatedValueWriter svw = new SeparatedValueWriter(fs, new UTF8Encoding(false));
                 svw.Quotes = false;
-                svw.Separator = "  ";
+                svw.Separator = ' ';
                 svw.VerifyFieldCount = true;
 
                 // Get a properly sorted set of keys
diff --git a/SabreTools.Library/DatFiles/SeparatedValue.cs b/SabreTools.Library/DatFiles/SeparatedValue.cs
index 3ad88bfc..f62993e4 100644
--- a/SabreTools.Library/DatFiles/SeparatedValue.cs
+++ b/SabreTools.Library/DatFiles/SeparatedValue.cs
@@ -397,7 +397,7 @@ namespace SabreTools.Library.DatFiles
 
                 SeparatedValueWriter svw = new SeparatedValueWriter(fs, new UTF8Encoding(false));
                 svw.Quotes = true;
-                svw.Separator = this._delim.ToString();
+                svw.Separator = this._delim;
                 svw.VerifyFieldCount = true;
 
                 // Write out the header
diff --git a/SabreTools.Library/Readers/IniReader.cs b/SabreTools.Library/Readers/IniReader.cs
index 60419ec6..0b9b47b7 100644
--- a/SabreTools.Library/Readers/IniReader.cs
+++ b/SabreTools.Library/Readers/IniReader.cs
@@ -134,7 +134,7 @@ namespace SabreTools.Library.Readers
         }
 
         /// <summary>
-        /// Dispose of the reader
+        /// Dispose of the underlying reader
         /// </summary>
         public void Dispose()
         {
diff --git a/SabreTools.Library/Writers/SeparatedValueWriter.cs b/SabreTools.Library/Writers/SeparatedValueWriter.cs
index fabe32f0..b8f69312 100644
--- a/SabreTools.Library/Writers/SeparatedValueWriter.cs
+++ b/SabreTools.Library/Writers/SeparatedValueWriter.cs
@@ -32,9 +32,9 @@ namespace SabreTools.Library.Writers
         public bool Quotes { get; set; } = true;
 
         /// <summary>
-        /// Set what string should be used as a separator
+        /// Set what character should be used as a separator
         /// </summary>
-        public string Separator { get; set; } = ",";
+        public char Separator { get; set; } = ',';
 
         /// <summary>
         /// Set if field count should be verified from the first row
@@ -79,7 +79,7 @@ namespace SabreTools.Library.Writers
                 throw new ArgumentException(nameof(sw));
 
             // If the separator character is invalid, we error
-            if (string.IsNullOrEmpty(Separator))
+            if (Separator == default(char))
                 throw new ArgumentException(nameof(Separator));
 
             // If we have the first row, set the bool and the field count