diff -up k3b-1.0.4/libk3b/core/k3bglobalsettings.cpp.manualbufsize k3b-1.0.4/libk3b/core/k3bglobalsettings.cpp
--- k3b-1.0.4/libk3b/core/k3bglobalsettings.cpp.manualbufsize	2007-11-02 10:55:39.000000000 +0100
+++ k3b-1.0.4/libk3b/core/k3bglobalsettings.cpp	2008-04-22 14:15:06.000000000 +0200
@@ -22,7 +22,7 @@ K3bGlobalSettings::K3bGlobalSettings()
   : m_eject(true),
     m_burnfree(true),
     m_overburn(false),
-    m_useManualBufferSize(false),
+    m_useManualBufferSize(true),
     m_bufferSize(4),
     m_force(false)
 {
@@ -37,7 +37,7 @@ void K3bGlobalSettings::readSettings( KC
   m_eject = !c->readBoolEntry( "No cd eject", false );
   m_burnfree = c->readBoolEntry( "burnfree", true );
   m_overburn = c->readBoolEntry( "Allow overburning", false );
-  m_useManualBufferSize = c->readBoolEntry( "Manual buffer size", false );
+  m_useManualBufferSize = c->readBoolEntry( "Manual buffer size", true );
   m_bufferSize = c->readNumEntry( "Fifo buffer", 4 );
   m_force = c->readBoolEntry( "Force unsafe operations", false );