diff --git a/SabreTools.Serialization/Models/CDROM/DataSector.cs b/SabreTools.Serialization/Models/CDROM/DataSector.cs
index 9e2914e0..359fcd07 100644
--- a/SabreTools.Serialization/Models/CDROM/DataSector.cs
+++ b/SabreTools.Serialization/Models/CDROM/DataSector.cs
@@ -4,7 +4,7 @@ namespace SabreTools.Data.Models.CDROM
     /// A CD-ROM data sector
     /// </summary>
     /// <see href="https://ecma-international.org/wp-content/uploads/ECMA-130_2nd_edition_june_1996.pdf"/>
-    public abstract class DataSector
+    public abstract class DataSector : ISO9660.Sector
     {
         /// <summary>
         /// Sync pattern, 12 bytes
diff --git a/SabreTools.Serialization/Models/ISO9660/DataSector.cs b/SabreTools.Serialization/Models/ISO9660/DataSector.cs
new file mode 100644
index 00000000..ee27452f
--- /dev/null
+++ b/SabreTools.Serialization/Models/ISO9660/DataSector.cs
@@ -0,0 +1,14 @@
+namespace SabreTools.Data.Models.ISO9660
+{
+    /// <summary>
+    /// An ISO-9660 data sector
+    /// </summary>
+    /// <see href="https://ecma-international.org/wp-content/uploads/ECMA-119_5th_edition_december_2024.pdf"/>
+    public abstract class DataSector : Sector
+    {
+        // Data sectors only contain user data
+        // TODO: Create user data base class for all single-sector structures
+        // TODO: Create generic data sector with byte array data
+        // TODO: Update CD-ROM models to take advantage of this
+    }
+}
diff --git a/SabreTools.Serialization/Models/ISO9660/Sector.cs b/SabreTools.Serialization/Models/ISO9660/Sector.cs
new file mode 100644
index 00000000..2a5ef8d5
--- /dev/null
+++ b/SabreTools.Serialization/Models/ISO9660/Sector.cs
@@ -0,0 +1,10 @@
+namespace SabreTools.Data.Models.ISO9660
+{
+    /// <summary>
+    /// Represents a generic sector for a disc image
+    /// </summary>
+    public abstract class Sector
+    {
+        // There are no common fields between all sector types
+    }
+}