>>3
Not too sure - I've haven't used Nero much, but I think it's rather on the basic side, and the versions that get supplied with DVD burners can be pared-down "lite" versions too. I've used Sonic MyDVD and Roxio Media Creator a bit more, and IIRC they should do all the things you want (chapter menus and such). Roxio is bugged all to hell though (version 8 was anyway), so approach with caution. My software of choice is Adobe Encore 2.0, which is about as powerful as you'll get in the consumer stakes - multiple audio and subs, seamless branching, animated menu background and foregrounds, interactive overlays... Everything is controllable, but you do need to put more work into designing the menus (ideally in Photoshop because of how Encore recognises buttons, video areas, etc.), and I like to do the MPEG-2 encoding beforehand in TMPGEnc, which is faster and more flexible than the rather fussy built-in encoder. It's more work, but with effort the results can look like a professionally-authored DVD.