You can cache frames from media imported from Wiretap and Wiretap Gateway. Cached frames are saved in the user-defined location set in the Degrain Cache field found in Project settings. Media is saved in this location even if, in the Rendering menu, the Degrain File Location option box is set to Save with Scan.

Media that is soft-imported from Wiretap use source files that can be accessed using a file path structure, rather than a Wiretap or Wiretap Gateway address. As a result, soft-imported frames can be saved in Scans Home or the user-defined degrain cache location.