DVDFab Gold won't finalize

I need help with DVDFab Gold. I have been using it for about 9 months now and I have copied and burned over 200 movies with no bad disks, read or write problems. Last week my windows ME crashed so I formatted the hard drive and started from scratch. Since then DVDFab Gold will copy a movie just fine and it will sometimes burn successfully, but even when it does it recogizes the disk as bad in my stand alone players. I can play back the copy on my PC fine but not on my stand alone players. I have tried 5 different movies and gone through almost a whole cake of 50 disks. I have looked for everything I can think of and I can’t find anything any different than before. I have a 2.4 meg intel processor, 80 gig hard drive, 750 meg ram, 1 16x lite-on writer and 1 20x lite-on writer. I select VSO burning engine and SAO writing on DVD-R’s. Any help would surely be appreciated.