In playing with making SVCDs this weekend I suddenly thought of a great use for them: Home Movies. My parents are fairly new mac owners. My mom got the mac because she wanted to do home video stuff on it. We've played with it a few times, but she keeps asking me "well, how can I send this to someone else". One solution I gave her was just saving it to a quicktime file and then burning that to CD.
Now that I know how easy it is to make VCDs or SVCDs I think I'm going to recommend that. The biggest reason is that a large number of DVD players can at least play VCDs. So now the next step is to come up instructions for her to do it on her own.