diff --git a/CUERipper/frmCUERipper.cs b/CUERipper/frmCUERipper.cs
index 7862e7f..baa4c88 100644
--- a/CUERipper/frmCUERipper.cs
+++ b/CUERipper/frmCUERipper.cs
@@ -996,11 +996,8 @@ namespace CUERipper
 
         private void resetEncoderModes(CUEToolsUDC encoder)
         {
-            if (encoder.settings != null)
-            {
-                encoder.settings.PCM = AudioPCMConfig.RedBook;
-                buttonEncoderSettings.Enabled = encoder.settings.HasBrowsableAttributes();
-            }
+            if (encoder.settings != null) encoder.settings.PCM = AudioPCMConfig.RedBook;
+            buttonEncoderSettings.Enabled = encoder.settings != null && encoder.settings.HasBrowsableAttributes();
             string[] modes = encoder.SupportedModes;
             if (modes == null || modes.Length < 2)
             {
@@ -1011,8 +1008,14 @@ namespace CUERipper
             }
             else
             {
+                if (encoder.EncoderModeIndex == -1 && encoder.settings != null)
+                {
+                    string defaultMode;
+                    encoder.settings.GetSupportedModes(out defaultMode);
+                    encoder.EncoderMode = defaultMode;
+                }
                 trackBarEncoderMode.Maximum = modes.Length - 1;
-                trackBarEncoderMode.Value = encoder.DefaultModeIndex == -1 ? modes.Length - 1 : encoder.DefaultModeIndex;
+                trackBarEncoderMode.Value = encoder.EncoderModeIndex == -1 ? modes.Length - 1 : encoder.EncoderModeIndex;
                 labelEncoderMode.Text = encoder.EncoderMode;
                 labelEncoderMinMode.Text = modes[0];
                 labelEncoderMaxMode.Text = modes[modes.Length - 1];
diff --git a/CUETools.Codecs.FLACCL/FLACCLWriter.cs b/CUETools.Codecs.FLACCL/FLACCLWriter.cs
index 71fee04..3f6c51a 100644
--- a/CUETools.Codecs.FLACCL/FLACCLWriter.cs
+++ b/CUETools.Codecs.FLACCL/FLACCLWriter.cs
@@ -34,12 +34,13 @@ namespace CUETools.Codecs.FLACCL
     public class FLACCLWriterSettings : AudioEncoderSettings
     {
         public FLACCLWriterSettings()
-            : base("", "8")
+            : base()
         {
         }
 
-        public override string GetSupportedModes()
+        public override string GetSupportedModes(out string defaultMode)
         {
+            defaultMode = "8";
             return this.AllowNonSubset ? "0 1 2 3 4 5 6 7 8 9 10 11" : "0 1 2 3 4 5 6 7 8";
         }
 
diff --git a/CUETools.Codecs.FLAKE/FlakeWriter.cs b/CUETools.Codecs.FLAKE/FlakeWriter.cs
index 0b7feec..e868872 100644
--- a/CUETools.Codecs.FLAKE/FlakeWriter.cs
+++ b/CUETools.Codecs.FLAKE/FlakeWriter.cs
@@ -37,12 +37,13 @@ namespace CUETools.Codecs.FLAKE
     public class FlakeWriterSettings : AudioEncoderSettings
     {
         public FlakeWriterSettings()
-            : base("", "7")
+            : base()
         {
         }
 
-        public override string GetSupportedModes()
+        public override string GetSupportedModes(out string defaultMode)
         {
+            defaultMode = "7";
             return this.AllowNonSubset ? "0 1 2 3 4 5 6 7 8 9 10 11" : "0 1 2 3 4 5 6 7 8";
         }
 
diff --git a/CUETools.Codecs.WMA/WMAWriter.cs b/CUETools.Codecs.WMA/WMAWriter.cs
index dfa1b84..08746c1 100644
--- a/CUETools.Codecs.WMA/WMAWriter.cs
+++ b/CUETools.Codecs.WMA/WMAWriter.cs
@@ -188,9 +188,11 @@ namespace CUETools.Codecs.WMA
             return formats;
         }
 
-        public override string GetSupportedModes()
+        public override string GetSupportedModes(out string defaultMode)
         {
-            return string.Join(" ", GetFormats(null).ConvertAll(s => s.modeName).ToArray());
+            var fmts = GetFormats(null);
+            defaultMode = fmts.Count > 0 ? fmts[fmts.Count - 1].modeName : "";
+            return string.Join(" ", fmts.ConvertAll(s => s.modeName).ToArray());
         }
     }
 
diff --git a/CUETools.Codecs/AudioEncoderClass.cs b/CUETools.Codecs/AudioEncoderClass.cs
index 32881f5..0814c3c 100644
--- a/CUETools.Codecs/AudioEncoderClass.cs
+++ b/CUETools.Codecs/AudioEncoderClass.cs
@@ -8,7 +8,7 @@ namespace CUETools.Codecs
     /// </summary>
     /// <remarks>
     ///    When plugins with classes that provide <see cref="IAudioDest" /> are
-    ///    registered, their <see cref="AudioEncoderClass" /> attributes are read.
+    ///    registered, their <see cref="AudioEncoderClassAttribute" /> attributes are read.
     /// </remarks>
     /// <example>
     ///    <code lang="C#">using CUETools.Codecs;
@@ -19,7 +19,7 @@ namespace CUETools.Codecs
     ///}</code>
     /// </example>
     [AttributeUsage(AttributeTargets.Class, AllowMultiple = true)]
-    public sealed class AudioEncoderClass : Attribute
+    public sealed class AudioEncoderClassAttribute : Attribute
     {
         private string _encoderName, _extension;
         private bool _lossless;
@@ -51,7 +51,7 @@ namespace CUETools.Codecs
             get { return _settings; }
         }
 
-        public AudioEncoderClass(string encoderName, string extension, bool lossless, int priority, Type settings)
+        public AudioEncoderClassAttribute(string encoderName, string extension, bool lossless, int priority, Type settings)
         {
             _encoderName = encoderName;
             _extension = extension;
diff --git a/CUETools.Codecs/AudioEncoderSettings.cs b/CUETools.Codecs/AudioEncoderSettings.cs
index 2dddf5a..0e49a9a 100644
--- a/CUETools.Codecs/AudioEncoderSettings.cs
+++ b/CUETools.Codecs/AudioEncoderSettings.cs
@@ -25,13 +25,17 @@ namespace CUETools.Codecs
             foreach (PropertyDescriptor property in TypeDescriptor.GetProperties(this))
                 property.ResetValue(this);
             this.m_supported_modes = supported_modes;
-            this.EncoderMode =  default_mode;
+            this.m_default_mode = default_mode;
+            //GetSupportedModes(out m_default_mode);
+            this.EncoderMode = m_default_mode;
         }
 
-        private string m_supported_modes;
+        protected string m_supported_modes;
+        protected string m_default_mode;
 
-        public virtual string GetSupportedModes()
+        public virtual string GetSupportedModes(out string defaultMode)
         {
+            defaultMode = m_default_mode;
             return this.m_supported_modes;
         }
 
@@ -101,23 +105,14 @@ namespace CUETools.Codecs
             set;
         }
 
-        [XmlIgnore]
-        [Browsable(false)]
-        public string[] SupportedModes
-        {
-            get
-            {
-                return this.GetSupportedModes().Split(' ');
-            }
-        }
-        
         [XmlIgnore]
         [Browsable(false)]
         public int EncoderModeIndex
         {
             get
             {
-                string[] modes = this.SupportedModes;
+                string defaultMode;
+                string[] modes = this.GetSupportedModes(out defaultMode).Split(' ');
                 if (modes == null || modes.Length < 1)
                     return -1;
                 for (int i = 0; i < modes.Length; i++)
@@ -128,7 +123,8 @@ namespace CUETools.Codecs
 
             set
             {
-                string[] modes = this.SupportedModes;
+                string defaultMode;
+                string[] modes = this.GetSupportedModes(out defaultMode).Split(' ');
                 if (modes.Length == 0 && value < 0)
                     return;
                 if (value < 0 || value >= modes.Length)
diff --git a/CUETools.Codecs/CUETools.Codecs.csproj b/CUETools.Codecs/CUETools.Codecs.csproj
index 943e822..2d63d74 100644
--- a/CUETools.Codecs/CUETools.Codecs.csproj
+++ b/CUETools.Codecs/CUETools.Codecs.csproj
@@ -90,6 +90,7 @@
     <Compile Include="PlaybackState.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="SilenceGenerator.cs" />
+    <Compile Include="UserDefinedEncoderSettings.cs" />
     <Compile Include="UserDefinedReader.cs" />
     <Compile Include="UserDefinedWriter.cs" />
     <Compile Include="WAVReader.cs" />
diff --git a/CUETools.Codecs/UserDefinedEncoderSettings.cs b/CUETools.Codecs/UserDefinedEncoderSettings.cs
new file mode 100644
index 0000000..a65b050
--- /dev/null
+++ b/CUETools.Codecs/UserDefinedEncoderSettings.cs
@@ -0,0 +1,39 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.ComponentModel;
+
+namespace CUETools.Codecs
+{
+    public class UserDefinedEncoderSettings : AudioEncoderSettings
+    {
+        public UserDefinedEncoderSettings()
+            : base()
+        {
+        }
+
+        public string SupportedModes
+        {
+            get
+            {
+                return m_supported_modes;
+            }
+            set
+            {
+                m_supported_modes = value;
+            }
+        }
+
+        public string DefaultMode
+        {
+            get
+            {
+                return m_default_mode;
+            }
+            set
+            {
+                m_default_mode = value;
+            }
+        }
+    }
+}
diff --git a/CUETools.Processor/CUEConfig.cs b/CUETools.Processor/CUEConfig.cs
index 755068e..13bc626 100644
--- a/CUETools.Processor/CUEConfig.cs
+++ b/CUETools.Processor/CUEConfig.cs
@@ -153,7 +153,7 @@ namespace CUETools.Processor
 
             encoders = new CUEToolsUDCList();
             foreach (Type type in CUEProcessorPlugins.encs)
-                foreach (AudioEncoderClass enc in Attribute.GetCustomAttributes(type, typeof(AudioEncoderClass)))
+                foreach (AudioEncoderClassAttribute enc in Attribute.GetCustomAttributes(type, typeof(AudioEncoderClassAttribute)))
                 {
                     try
                     {
diff --git a/CUETools.Processor/CUEProcessorPlugins.cs b/CUETools.Processor/CUEProcessorPlugins.cs
index ef13cea..db457d9 100644
--- a/CUETools.Processor/CUEProcessorPlugins.cs
+++ b/CUETools.Processor/CUEProcessorPlugins.cs
@@ -70,7 +70,7 @@ namespace CUETools.Processor
                         decs.Add(type);
                     }
                     //if (type.IsClass && !type.IsAbstract && typeof(IAudioDest).IsAssignableFrom(type))
-                    if (Attribute.GetCustomAttributes(type, typeof(AudioEncoderClass)).Length > 0)
+                    if (Attribute.GetCustomAttributes(type, typeof(AudioEncoderClassAttribute)).Length > 0)
                     {
                         encs.Add(type);
                     }
diff --git a/CUETools.Processor/CUEToolsUDC.cs b/CUETools.Processor/CUEToolsUDC.cs
index babef7d..95798da 100644
--- a/CUETools.Processor/CUEToolsUDC.cs
+++ b/CUETools.Processor/CUEToolsUDC.cs
@@ -43,7 +43,7 @@ namespace CUETools.Processor
             type = null;
         }
 
-        public CUEToolsUDC(AudioEncoderClass enc, Type enctype)
+        public CUEToolsUDC(AudioEncoderClassAttribute enc, Type enctype)
         {
             name = enc.EncoderName;
             extension = enc.Extension;
@@ -118,7 +118,8 @@ namespace CUETools.Processor
         {
             get
             {
-                return this.settings == null ? this.supported_modes : this.settings.GetSupportedModes();
+                string defaultMode;
+                return this.settings == null ? this.supported_modes : this.settings.GetSupportedModes(out defaultMode);
             }
             set
             {
@@ -149,7 +150,7 @@ namespace CUETools.Processor
             }
         }
 
-        public int DefaultModeIndex
+        public int EncoderModeIndex
         {
             get
             {
diff --git a/CUETools/frmCUETools.cs b/CUETools/frmCUETools.cs
index 319f160..a43f451 100644
--- a/CUETools/frmCUETools.cs
+++ b/CUETools/frmCUETools.cs
@@ -2465,8 +2465,14 @@ namespace JDP
             }
             else
             {
+                if (encoder.EncoderModeIndex == -1 && encoder.settings != null)
+                {
+                    string defaultMode;
+                    encoder.settings.GetSupportedModes(out defaultMode);
+                    encoder.EncoderMode = defaultMode;
+                }
                 trackBarEncoderMode.Maximum = modes.Length - 1;
-                trackBarEncoderMode.Value = encoder.DefaultModeIndex == -1 ? modes.Length - 1 : encoder.DefaultModeIndex;
+                trackBarEncoderMode.Value = encoder.EncoderModeIndex == -1 ? modes.Length - 1 : encoder.EncoderModeIndex;
                 labelEncoderMode.Text = encoder.EncoderMode;
                 labelEncoderMinMode.Text = modes[0];
                 labelEncoderMaxMode.Text = modes[modes.Length - 1];