Louren,
I have seen this issue with DVDA, reported it to SONY support, beat it to death with no resolution.
I was successfully burning DVD-R discs, but failed on trying to burn DVD+RW (re-writable). Same exact project burned fine with exact same level of DVDA and exact same DVD+RW medium on another computer – only the device was different. In my case, an LG BH10LS30 blu-ray burner was the one that failed.
I believe it’s hardware related in the way DVDA handles certain drives. I suspect DVDA does not support some combination of hardware and medium.
Same drive happily burned a prepared project using Nero to DVD+RW.
Have not tried the same scenario with the newest version of DVDA.
Cheers for now,
Tom Pauncz
(30WEST MEDiA GROUP)