From a producer’s perspective, you know your technical specs, you may know exactly what camera you want, you know what you are shooting (interview, documentary, b-roll, green screen, etc) and how it will be shown, but you are generally not concerned with how your material gets from the camera to editor. If you ask your editors what they want as a deliverable, generally they are going to ask for a plug and play file. The files can be delivered on an external hard drive, thumb drive, or even ftp’ed. For now the most popular choice is an external hard drive.