My DVD writer has stopped recognizing blank dvds halfway through a stack of them. Burning programs claim the dvds already have some data on them. I tried another batch of the same SONY DVD+R x16 brand (even bought them in another country), which worked fine on someone else's laptop, and same problem. I have tried changing from IMGBurn to Infrarecorder to Nero and it makes no difference. Meanwhile, the drive continues to read disks perfectly.
Can anyone suggest what I should be checking?
I am running Vista Ultimate 32-bit on a Packard Bell X4510FR (Q8200, 3GB, 640GB). The DVD writer is an ATAPI DVD A DH16A6S CdRom Device.