Help with Nero

I am using anydvd and shrink dvd to get a movie ready to burn. I then use nero for the burning part and I have it set it all up. It starts to burn and then it gets to about 3 percent and then freezes. the time keeps going up but the buffer percent and total percent never goes any where. I have used this to burn music and data and have not had a probleme. The version is NE660_16 this is what it says at the top of the window when I start it in run.

I am using a HP dvd840 this has light scribe. that I have on a external case conected to a usb port on the lap-top.