My q6600 can transcode dvd-9 to dvd-5 at 1300fps (takes 3-4 mintues for an entire disc)
And converting divx back to dvd still takes at LEAST the length of the film, if that gives you any idea what you’re getting into.
I’d suggest getting a divx enabled dvd-player, and just burning the avi files themselves onto dvd.
There’s an upconverting pioneer dvd player that plays divx and xvid flawlessly at best buy for $89.
That’s the best divx playing dvd player under $100, hands down.