Digital intermediate

Your film timeline is locked, both the colorist and audio engineer have completed their tasks and your on schedule. Now it's time to export the film into different formats for ex. a digital cinema package (DCP) or just a any other format. But what is flat, scope or SMPTE? And what the **** does gamma, X'Y'Z', P3-D60 mean?
Please don't hesitate to contact me for questions regarding film export.