Sadly, svhs, that doesn't seem to work for me. I have tried burning using Nero Express, but the option to create a multi-session disc is greyed out when I select the video burning process (though not when burning data files). I have also tried CyberLink Power Producer 2 Gold, but with that one I am not given the option to create a multisession disc, and the disc it produces cannot be added to - it tells me that "this disc is not editable".

I have used these two programmes simply because they came with the DVD burner.

Can I just copy the video files (say with Windows XP), or does that not work either?