Sony PCG-R505GCK - Manual (Page 187)

Troubleshooting Programs
193
Which program do I use for CD-R/CD-RW functions?
Use the preinstalled Sony SonicStage software and Windows® software to create
CDs on your VAIO® computer, if the specific model you purchased is
preconfigured with all of the necessary components for CD-R and CD-RW
capability.
You can also download the RealJukebox CD-burning component to create CDs,
but it may interfere with your computer’s normal system operations.