Hey there...I probably did it in InDesign, but there are other ways to do it. You could make one document with both (ex. 5 x 10" roughly) and fold it down to size, or make two documents with the front and back in the same spots on the page print on front and back, then trim. That's probably what I did...I can't remember which one that is. If you need help email me at (refuse dot info at gmail dot com)
I am trying to make a cover to put inside a CD case and I noticed again today the nice one you did for your 2006 blabmix. What program did you use? I have a front cover and a track listing to go inside the case but I have no idea how to print them together.