Shane,
Thank you for your speedy reply.
I do have a Blackmagic card and that will output on the fly (as you suggest) in letterbox which is cool for doing a one off copy ...
However, I do want to create separate files for HD 16x9, HD 4x3 pan and scan and NTSC and PAL letterbox and pan and scan versions.
So you reckon that DV/PAL and DV/NTSC would be ok, huh? Thanks very much for the advice. I'll do that.
Best wishes, Shane, and thanks again for your time and prompt reply
Harry.