I burned a movie last night using DVD Xpress. When the program told me to insert the blank DVD, I did and then pressed start. As soon as I pressed start, it told me burn complete. Nothing was on the disk. Any ideas why this is happening? It did it 4 more times. This was a diferent type of DVD than I generaly use, it was a Memorex X8. I generaly use CompUSA generics without any problems. Please HELP.