I am using a HCL Leaptop c9509...for some reason it doesn't detect blank dvds....it does detect cds and I am able to write on them but not on dvds. I am also having problems with the win32-sap virus which my avast antivirus detcts every now and then. I am thinking of reformatting my hard drive and reinstalling my OS. But then I have to back up my data for which I need the dvds. I have installed Winamp 5 but still the issue persists...i am using Windows xp