FCP to DVD - Different Formats

I need to burn a DVD to be played in a normal DVD player.

I will be putting two separate short films onto the DVD one was filmed in Mini-DV and the other on a Canon 550D.

For the Mini-DV footage I used MPEG stream clip and transcoded that to apple pro res 422 25fps. Ratio was unscaled at 720X540, 5 minutes.

For the 550D footage I also transcoded that also to Apple pro res 422 and unscaled at the Ratio is 1920x1080, 25Fps, 7 minutes.

They have both been edited in separated projects so far but now I need to get them onto one DVD keeping the best quality possible. I have DVD studio so what would be the best way to do this?

I really need this done asap so any reply’s will be very helpful!

Thanks!