noun
bonus footage; extra video content
Refers to supplementary video material included with a media release, such as behind-the-scenes clips, interviews, or making-of documentaries.
このDVDには特典映像がたくさん収録されている。
This DVD includes a lot of bonus footage.
特典映像で監督のインタビューが見られます。
You can watch the director's interview in the bonus footage.
Compound of 特典 (bonus, privilege) and 映像 (video, footage).