I'm having trouble burning back-ups in full disc mode using Platinum v188.8.131.52 and a Lite-On LH20A1P burner. I am able to burn a dual layer disk using Platinum, and I am able to burn DVD+R and DVD-R discs using Roxio, but not with Platinum. The burn fails after about 70% completion. Once it went all the way through, but the disc wasn't readable. I am using media recommended by Lite-On. Thanks in advance for any help.