I don’t quite understand Jazzguy’s comment because Smart Converter has proven to me to be anything but stable (or smart, BTW). It crashes every other time I ran it on my Mac OS 10.7.1 iMac and 10.6.8 MacBook — both new-ish and immaculately maintained.
Additionally, Smart Converter doesn’t make DVDs, MPEG2 or Matroska (.mkv) files, and there is no ability to select, change or adjust anything at all, so it’s ridiculously barebones and utterly useless, like most of Shedworks software.
To be fair, I gave it a 5-star Ease of Use rating simply because it’s never used by anyone I know, therefore extremely easy. Nice that it’s free, though.