Vegas does support RAW files (I'm actually working on just such a project... I have a time lapse of my backyard from the last 15+ days, watching Spring happen at 6 frames per hour, shot raw on a Canon 60D). But it does that using Microsoft's RAW filter. Which is here: http://www.microsoft.com/en-us/download/details.aspx?id=26829. And I just noticed they updated it very recently. But no mention of DNG support, as stupid as that would seem.