No, nothing else required Persoanlly I'd always prefer to work in square pixels, though, so using a full HD preset is usually what I do and AE can handle that just fine based on its interpretation rules. Working in AE it doesn't matter, anyway - since it always fully decompresses and ecxpands, any successive compression is "fresh", anyways. For DVD output you'd simply nest the comp in a NTSC comp or choose a suitable preset in AME and again based on their automatic rules, they'd handole this just as well...
If you're authoring in Encore and you've purchased one of the Adobe Suites, you can also drop Premiere Pro Projects, After Effects Projects or rendered uncopressed or lossless HD files directly in the Project panel, drop them in a timeline and build your DVD there. AE and PPro projects open up a window that will give you the choice of AE comps or PPro Sequences.
If you do that and want multiple copies I'd recommend that you build a Disk Image so that compression only happens once and you can burn additional DVD's in minutes.
Hi Rick and Mylenium,
Thank you both for taking the time out to respond. That's execatly what I was looking for. Have a good weekend.