Sony awg170a wont burn DVDs

I have an HP with DVD-RAM SONY AWG170A burner running under XP HOME sp2. the DVD plays CDs and DVDs fine and burns CD with no problem but when I try to
create a data DVD, RecordNow gives me an error message and is unable to
create it.
I already update DVD firmware to latest version and tried several type of media support
Any suggestion to keep the burner back alive?
Thanks