how can i fix a malfunctioning PHILIP DVD-RAM SDVD8821 cd-rom drive?

i have been working on an acer aspire 3682 running windows xp SP2 OS. It is unable to read or write any CD. The drive is specifically a PHILIP DVD-RAM SDVD8821_EX04. When you view hardware information from device manager, it displays an error state and explaind that the drivers for it are either corrupted or missing. i have googled the the driver but have been unable to come up with anything much. would be grateful for any help in this. I'm quite desperate so please do help and quick if possible! Thanks in advance!