Optiarc DVD-RW burns DVD's, wont recognize blank CDs! Help!

[qanda]This thread is about the Optiarc AD-7540A. Click here to see full specs[/qanda]Hey everyone,

I have a HP laptop with an Optiarc 7560a DVDRW drive. Until recently I had no problem burning DVDs and CDs on it. I use Nero Vision to burn DVDs and either Nero Startsmart or itunes to burn CDs.

I am literally in the middle of a 100 stack of CD-Rs that I have been using and just burned a DVD.

When I try to burn a CD, the drive no longer recognizes the CD-R. It continues to say insert blank disk.

Please help???

What tool were used lastly?

BTW operating system is vista sp2 32 bit.

I rarely burn CDs but when I do it is Nero. The last tool used to burn a CD was iTunes though.

The last tool used to burn a DVD was Nero vision.

Itunes, i would wipe it first and try again.