@Aitch

Hi

Using the Movie Edit Pro internal disc menu and burn functions there is no need to create mpg or mp4 video files - MEP takes care of it for you creating VOB files for DVD and the MTS files for Blu-Ray.

DVD discs - my preference is DVD-R - in my experience they are less prone to issues than the DVD+R.

I use Ritek full face printable discs to avoid the need for paper labels which I have had bad balance issues with - an exploding disc is quite spectacular and does not do the writer any good. You do need an inkjet printer that can print on disc.

You only need DL discs if your project is over 2 hrs long.

Your actual burn options in MEP are:

1. Create an ISO file - this is a complete image of the disc created on your hard drive and can be burned using MEP, a third party program such as Nero or ImgBurn or Windows Explorer. ISO files are useful for archiving, should you need more discs creating later, as it is complete.
    
2. Burn direct to the disc - this is the easiest method.

I would recommend getting a couple of DVD-RW discs for initial burns, often when testing you will find a change needs to be made to the video, and you can re-use the disc.

Once the disc is correct the DVD-RW can copied direct to permanent disc using one of the programs mention above.

Note: with your computer spec the render/burn times may be quite long possibly up to 3 - 4 hrs.

HTH

John EB