Windvd 5.0 Fsc Serial DVDSanta - Problem With Burning?

DVDSanta - Problem with Burning? - windvd 5.0 fsc serial

Does anyone know why this happens? Convert I mean. Avi with dvdSanta and led me to grasp, and I choose Yes, it goes through the whole process and I get the message that happen, I click OK, then try the DVD and there is nothing there. I'm doing this for months and works perfectly. He suddenly stopped working. I use version 4.00 full version. I see the files (on my PC no problem) with InterVideo WinDVD 5.0. I have tried to burn again several times and still does not work. I even tried to convert again, remains the same .... DVDs are not the problem, because I have been using along and work well. Re-installed dvdSanta too. Suggestions please?

Thank you.