If your Mac is capable of doing s-video out and you have a DVD recorder, try playing it through your dvd recorder and recording to DVD that way.

It does indeed, that's exactly how I was thinking of doing it as a last resort.

I don't have a dedicated DVR, so I'm thinking sending from my Mac's S-Video to the video-pass-through feature on my digital handy cam (have never used it, hope it works!), recording to a MiniDV, then importing it back into iMovie... then finally DVD.

Not an ideal solution (and horribly laborious) but unfortunately we have no better one! :)

Actually, there is another method that uses software to capture the video stream, much like capturing audio with Audio Hijack, but the only two programs I found were PC-only, and shareware (I'm all for free methods when it comes to things like thwarting DRM). And I'm not sure what happens when it comes to capturing & re-syncing the audio in the process either - sounds potentially nightmarish.