Did you post this message in the CD architect forum by mistake? I see you've made other posts in the DVD Architect forum previously, and I think more people could probably assist you with this question in that forum. I can't offer much help I just recently got a DVD burner, but from everything I've read so far, I see that a lot of DVD players have compatibility issues with the DVD-R format you're trying to burn the disc at. Is it possible to burn to a DVD+R format? I've heard DVD+R is a much more compatible format for DVD players. This is all from information I've read prior to purchasing my DVD recorder when I didn't understand the differences between DVD-R and DVD+R.