In order to make an anamorphic DVD at 2.35:1, you need to have black bars in the image. Your DVD will be 720x576 no matter what, so if you want wider than 16:9, you lose part of the 16:9 image to black bars. No way around it.
Work in a 16:9 project and apply either a mask or crops to get you to 2.35:1.
Work in a 16:9 project and apply either a mask or crops to get you to 2.35:1.