Kodak's K25 and KDC image formats date from a time before current standards for image formats coalesced, and when disk space was at a premium. As a result they were designed to e.g., store only partial color data. This means that these images don't respond well to modern demosaicing algorithms designed for current cameras, generating excessive noise and image artifacts. kxxMagic uses proprietary algorithms that account for the peculiarities of K25 and KDC images.