Whenever i try to burn .avi files about 50mb nero freezes and task manager says program is not responding. MPG and mpegs burn fine but with .avi I drag and drop and click write as normal, the burning status screen opens up and the top line says encoding but it wont encode it just freezes. i leave it for 10 mins click on task manager and it says "not responding" everytime. Nero says it burns mpegs and .avi but I dont have this trouble with mpg's/mpegs just .avi. Whats going wrong???????