Anyone know of any good OS X software that will do batch conversions of demuxed .m2v (or native .mpg) video to .dv format?

My DVD-RAM camcorder doesn't save in .dv format. It saves in MPEG-2, with all clips being separate. I can have huge numbers of clips on a single disc.

I want to edit the clips in iMovie, but using QT Pro to convert 50 .mpg clips to .dv one at a time gets tedious very quickly.

(I use Extractor to batch demux the .mpg files to .m2v and .mp2, and I use iTunes to batch convert the .mp2 files to .aif.)