Index: SQLiteException.cs
===================================================================
--- SQLiteException.cs	(.../vendor/SQLite.NET/current/System.Data.SQLite/SQLiteException.cs)	(revision 39464)
+++ SQLiteException.cs	(.../trunk/third-party/SQLite.NET/System.Data.SQLite/SQLiteException.cs)	(revision 39464)
@@ -97,10 +97,17 @@
       if (errorMessage.Length > 0)
         errorMessage = "\r\n" + errorMessage;
 
-      if (errorCode < 0 || errorCode >= _errorMessages.Length)
+      if (errorCode < 0 || (errorCode % 256) >= _errorMessages.Length)
         errorCode = 1;
 
-      return _errorMessages[errorCode] + errorMessage;
+      if (errorCode % 256 == 10) // I/O error
+      {
+        int extendedErrorCode = errorCode / 256;
+        if (extendedErrorCode >= 1 && extendedErrorCode < _ioErrorMessages.Length)
+          errorMessage = "\r\n" + _ioErrorMessages[extendedErrorCode] + errorMessage;
+      }
+
+      return _errorMessages[errorCode % 256] + errorMessage;
     }
 
     private static string[] _errorMessages = {
@@ -132,6 +139,27 @@
       "2nd parameter to sqlite3_bind() out of range",
       "File opened that is not a database file",
     };
+
+    private static string[] _ioErrorMessages = {
+      "",
+      "Error in Read",
+      "Not enough bytes read",
+      "Error in Write",
+      "Error in FSync",
+      "Error in Dir FSync",
+      "Error in Truncate",
+      "Error in FStat",
+      "Error in Unlock",
+      "Error in RdLock",
+      "Error in Delete",
+      "I/O blocked",
+      "Out of memory",
+      "Access denied",
+      "Error in Check Reserved Lock",
+      "Error in Lock",
+      "Error in Close",
+      "Error in Dir Close",
+    };
   }
 
   /// <summary>