There may be an easier way but the way I have always done it is to chop the mix up in to seperate numbered files starting from 1.
Eg:
Select the first track
Cut
Paste to new
Save new track as 1.wmv
Go back to the main mix and repeat until you have tunes seperated
Then use Nero or another burning program to lay the tracks down in order then burn them to CD. Make sure that “disc at once is selected” and that any option that sets gaps in between tracks is set to 0 or off.
