DISCO produces images as they appear in the Document Viewer. When DISCO processes native files, it automatically generates PDF images that include color (if color existed in the native file). Otherwise, DISCO will use the images provided and will maintain them in their original state (either color or black and white).
By default, DISCO will produce color PDFs. However, you can choose to produce Black and White TIFFs and color JPEGs. DISCO will scan each page for any color content, and create a JPEG image if any color is found.
To update image options go to Productions > Advanced options > Document format.