help with transferring from Avid 5.6.4 -> Encore 2.0

Hi all,
I've spent all afternoon trying to figure out the best way to get my edited Avid PAL project onto DVD. Avid exports a fantastic Quicktime Movie and the resolution is lovely. However, trying to import this into Encore yields the error message: "must have a resolution of 720x576 or 704x576". Now, I've tried, but Avid doesn't allow you to adjust resolution settings for Quicktime files. I'd heard that Quicktime is the industry standard so was surprised that it didn't work :-(

I've tried exporting as a .wmv file but it takes forEVER, the quality is awful and the 16:9 ratio of my footage is not respected.

I'd be so grateful if someone could let me know what is the best way to export from Avid into Encore in the quickest time with the lowest loss of quality and with 16:9 ratio respected.

You're all lovely for helping!!
Simon