I have been having really bad luck burning a dvd lately. I am using ROXIO TOAST TITANIUM. 11.2 with APPLE OSX.9.2 I am converting MP4's to MP2 with ADOBE PREMIERE PRO CC. My burn goes about 45% and I get 0X0C. medium writing error. I take the partially burned DVD and play it on my HOME SONY PLAYER> it works flawlessly other than it won't finish the burn. I have tested ROXIO by burning MP3's - 100% OK At this point I have to think it must be my MEDIA. Thoughts please.