This document outlines a process for selecting and discarding physical media as part of an archival digitization and preservation project. It involves 3 main steps: 1) documentation work to analyze the collections and properties, 2) physical inspection of media to verify condition and contents, and 3) technical examination of any remaining doubtful cases. Criteria are provided for determining what materials should be kept based on factors like uniqueness, quality, and role in digitization. Guidelines are given for different media types, especially film and video, regarding hierarchies of quality and combinations of formats. The goal is to retain the highest quality and most important materials while discarding redundant, obsolete, or too degraded copies.