To create a DVD I place my finished AVI on the Vegas timeline:
1] For the Video an MPEG2 Video stream only file called MyFile.mpg
2] For the Audio an AC3 file called MyFile.ac3
3] I place these in the same folder
4] I open DVDA and drag these files into the DVDA Workspace and then work on all the menu, text, button and any chapters I want.
5] I then proceed to "Prepare" and then "Burn"
And that is what I do.
Of course you can call your files what you want, so long as the prefix is called the same: "Myfile" or "BirthdayFile" or whatever . . . .
And no, WMV files do
NOT make a menu-navigable DVD. I can get 120mins ( 2 hours) onto a DVD so time is not the problem.
As to you being able to complete the task by Saturday, that's totally up to you.
Grazie