I had met the same 0.5% or 99.0% error when use windows dvd maker, I think this is compatibility problem, wdm is unreliable, so you can try some better dvd maker software, like RZ DVD Creator, it can make video DVD from any formats videos, it offer more DVD menu creation options, you can customzie the dvd menu background videos, pictures, musics, text, etc, and can add any texts, buttons on DVD menu, easy to personalize DVD menu, it can easy convert any formats videos to video DVD and burn to any DVD disc(DVD+R, DVD-R, DVD-RW, DVD+RW, DVD-R DL, DVD+R DL, etc), the burned video DVD can be played well on DVD player, and support multi conversion thread, you can add more conversion thread in option dialog to enhance speed when convert multiple videos onto one video dvd, it offer the better quality and more functions than wdm. You can yahoo or google search RZ DVD Creator and download it, easy to use, you should have a try.