I would like to archive some home videos (DV). I don't need to save them losslessly, but I would like to encode them in something high-quality.

What format is both pretty indistinguishable from the original and will likely be readable 15 years from now?

WMA makes me nervous, because it's only one company that makes it, and they're constantly coming out with newer formats. (VLC couldn't open my WMAs that Windows Movie Maker made.)

Other things I've considered are h.264, Ogg Theora, DivX, and Xvid.

I don't mind paying for something, but usually that means the format is owned by only one vendor.