I use Edvd from sonic togheter with scenarist for some of my dvdtitles. And now I hear and sees roumors on the internet about edvd not been compatible with windovs vista. Also sonic has discount the program (at least I
EDVD is not at all compatible with Vista. I think this is mainly due to the fact that Interactual is not Vista compatible. I found this out a month after I did a project for a client. It got replicated for 10000 DVDs.
but then that is not really Sonic's fault. I think you would find that if you had instead done a webDVD title (microsoft code) or a Director MX title that those too would have issues with Vista. Forward compatability is always tough.