Vegas does not have a template for PAL 704x576 so I have made a custom template with the 1.0926 PAL DV PAR. No problem.
However, I have also made a custom PAL Half D1 352x576 template. In that case the PAR should be 1.0926 * 2 = 2.1852.
Unfortunatly, when I enter that number Vegas 4 changes it to 2.0000. Why is a higher number not allowed?