Skip the first 2 phases on DVD-RB?

I ran a batch process of 2 DVDs overnite, except I didn’t realize you have to make the output directory different on each one. I thought RB would do it automatically. So the second DVD wrote over the first one. I did make the working path folder different, so now I have all the files in the D2VAVS folder, ready to be rebuilt. But I can’t find a way to have have RB open those files and rebuild them, it seems I have to do the whole encode over again. Any way to get around this?