According to the scene, DDC stands for Downloadable/Direct Digital Content.
– “DDC” refers to Downloadable/Direct Digital Content which is not freely available
DDC stands for Digital Distribution Copy. Rather than a screener being sent via the post, it is sent over the internet such as via a FTP or HTTP url.
Digital Distribution Copy is a version of a movie that has been obtained from a downloadable movie site such as Netflix and others.