Hi,
HP supplies the Drivers for their Hardware.
You need the Drivers to make the Computer and HP's Hardware work together.
HP stopped Support and supplying Drivers for that Hardware at Vista.
http://support.hp.com/au-en/drivers/selfservice/hp-dvd-writer-dvd500-series/5244296/model/5057686
For any more information I suggest that you ask in the HP Support forums.
http://h30434.www3.hp.com/psg/
Cheers.