Unable to burn CDs/DVDs using Nero 7 and Plextor PX 810SA

i suppose it reads cd's and dvd's properly?
then i think your burner is bad; but you can test with another dvd burner program to be sure :
http://www.thefreecountry.com/utilities/dvdcdburning.shtml
you can test your burner on another PC, or test another burner on yours

Can you use the built in Windows XP tool to write to CDs?

And did Nero work before correctly writing to CDs?

Nobus-Thanks for your reply. Yes, the PX 810SA reads both CDs and DVDs correctly. I will try the link you posted later today.

dbrunton-Thanks for your reply. I have never used the built in tool in WinXP to burn CDs. Nero did work correctly before (about a month ago, as I have some CDs that I burned back then)

I tried some of the free burning applications, but didn't have any luck. I triple checked the connections to the Plextor drive, but nothing seemed to change. I ended up buying another SATA burner to see if that was the problem. As it turned out, that was the issue. I now am able to burn CDs and DVDs without issue. This is the second and last time that I've had trouble with a Plextor drive. From now on, I'll be using different brands.

Thanks for the suggestions.

ok - can you close the question please then?

Sorry, I forgot to do that.

Even though the drive was replaced, I did not determine that it was in fact faulty. The Plextor drive could still read CDs and DVDs. It could also partially burn both. I opted to replace the drive, and that turned out to resolve the issue.