You'll see the project set-up presets when you start a new project, vesko.
And, when you do set up your New Project, you will want to choose a Preset that matches your source footage exactly. You can alter the output, when you go to Share/Export. You want your Project to match exactly.
Thank you very much for the help.
It turned out that my presets have disappeared - that was my problem.
After uninstalling and reinstalling PRE7 the presets apperaed again.
I have new question about matching exact settings on the MP4 files that I am opening to create DVD, but I will post it in a new thread.
It is difficult to choose the proper Preset, when the Presets go on holiday! This is an odd, though not unheard of issue. Glad that a reinstall brought them back. Bet they're all rested and tan by now.
We'll look for your other thread, and glad that you got this sorted,