Thanks Ken, I'm a new member and only purched PTE at the weekend. My first DVD burn had the Pinaccle box ticked, even though I used Nero on the resultant file (i thought you had to select one box, didn't realise you could select 'none'). The DVD played fine but did have a little shimmer on a few slides. Next time i'll try unchecking all the boxes and also unchecking interlaced video option too Thanks for the assistance, much appreciated. Regards, Phil, Nottingham, UK