If you're using Premiere Elements to burn our videos to BluRay, Donald, you're making a big mistake.
You've got standard definition movies but you're outputting a hi-def video format (BluRay) so you're essentially telling the program to triple the number of pixels. This won't make your movie look hi-def. It just adds pixels to your standard def (720x480) AVI, which will only results in a fuzzy, blown-out video. This is also why the process is taking so long.
So you're essentially taking two to three times as long to create a fuzzier movie. Which is not a good workflow.
I think I know what you're trying to do. It sounds like you're trying to take advantage of the fact that a BluRay holds over 5 times as much data as a DVD. But that only means you can fit 5 times as many movies on a disc if your video is DVD video. In Premiere Elements, the only option for outputting to a BluRay is a hi-def BluRay file.
Even if you use a third-party program to create the kind of hybrid you're trying to create, it probably won't do you much good. Most disc players wouldn't know what to do with DVD files on a BluRay disc -- so you'd probably only be able to play your disc on a computer.
I recommend keeping it simple. Put DVD video on a DVD and put BluRay video on a BluRay.
Many thanks for the explanation , Steve. It's very much Appreciated.