I'd do several things.
. Check if DMA is enabled on the burner & the HDD.
. If DVD Mate can create an ISO image file , rather than burn directly , then I'd do that & then burn the image with ImgBurn.
It's often hard to determine what precisely is the problem when 2 separate error messages are produced like this.
Separating the compiling from the burn might help use determine whether it's in the compilation or whether the burn failure just causes the missing file error.