|Sorry, I thought you were providing the model number for the DVD drive itself. Response #3 seemed to indicate that.|
From the specs of that laptop I have no idea how you got Win98 running on there at all. There are no drivers for Win98 for most of the hardware.
There are no special drivers for DVD optical drives but the motherboard chip set drivers must be installed. As I stated, there are none for Win98. Go to Device Manager and look. I suspect you will find yellow or red exclamation marks for much of the hardware.
I suggest you return to Vista.