When I am finished with my project and I have everything all set. All my video is in all my titles are in. I preview my dvd and then try to burn it. I send it to burn and the caption tells me that it is encoding media. It goes on and starts the burning but it gets to a certain point and i believe it gets to about 49% completed and then the message Transcoding error comes up. This is when it stops totally and is no longer burning the dvd. What am I doing wrong?