I created a slide show in Wondershare - burned it and it worked (with watermark - I hadn't purchased). I then purchased it, burned it again and the watermark is gone but it stops 1/3 of my way through. When I burn it it says it is only using 67% of the disc space. Haven't done anything differently. It says it burns successfully each time I burn it. I burned it on the same DVD disk as I did the first time, so Its not the disks. Frustrated!