Skullhead If your original files are 1440x1080 HD as I was guessing, and you want only SD PAL/625 as your deliverable (i.e. Standard definition - SD, rather than High Definition - HD) yes you can resize them, preserving the ratio would be 720x576.
Actually it would be 768x576 (D1 at 1.067) not 720, but of course you are quite right in that the output for both 4:3 PAL and 16:9 PAL would be 720x576.
Actually it would be 768x576 (D1 at 1.067) not 720, but of course you are quite right in that the output for both 4:3 PAL and 16:9 PAL would be 720x576.