Once you learn After Effects well enough you'll know that you don't want to do everything in After Effects. One can edit with it, of course, but at the risk of your own sanity.

Best to rough cut your project in Premiere or Final Cut know your scene length to the frame. Render only what's needed and build the effect scene in AE. 

Does no one work in fields anymore? If so, you'll want to consider rendering at field rate. 

Most players here play NTSC and Pal, in the US you'll want to make sure its NTSC. 

I don't use Roxio but you want to keep all animation uncompressed right up until the moment the DVD program does its own compression. Otherwise your losing generations.