When including a video, you will notice that by the end of the editing process you are going to have a lot of unused material from your shootings. (elearningindustry.com)
There is no additional payment for unused material or defence generated material. (newlawjournal.co.uk)
I obtained approval to take this calculated risk and spent my summer gathering unused materials, writing grant proposals, and making a lot of seating options myself. (edutopia.org)