Understanding Cinema DNG….
Cinema DNG (Digital Negative) is a format designed by Adobe and is comprable to shooting in RAW. Blackmagic Design’s Cinema Camera also shoots in the format.
DPbestflow.org has, among many useful articles and resources, a decent primer on the DNG format and best practices for production and post. If you want to know even more check out the Adobe Labs section on DNG and there is also a good discussion on LiftGammaGain about using the format in the real world.